The reason I regard the convention as profoundly damaging is that I view the whole philosophical framing of the convention as mistaken because it's framed entirely in terms of rights: But in reality, responsibilities are just as important (if not more important), and that's how the convention should have been framed. You simply can't have a decent and stable society if it's all based on everyone demanding their 'rights' and demanding that society provide for them, and noone thinking about their responsibility to treat others fairly and to work to provide for others.
(including btw many criminals who having destroyed their victims 'rights' without any concern, are very quick to demand their own 'rights' when it suits them, as per the ECHR)
But again the ECHR is about protecting the individual from the State. It is not about regulating the way that individuals treat each other. If I step out of my house and get stabbed to death my rights under the ECHR have not been breached, the ECHR is silent on the issue because it is not concerned by such things. If I step out of my house and get shot to death by a police officer on the other hand then that police officer is going to need to show why it was reasonable and proportional to kill me as the State has acted to deprive me of my right to life. You continue to take an absolutist view that is not supported by the intent and function of the ECHR. That's why you don't see victims of crimes taking court action using the ECHR against those that committed the crimes against you. It has nothing to do with them. So you are making a criticism of the ECHR about something which isn't anything to do with it.
Perhaps there has been a rise in entitlement culture, perhaps there hasn't. I'm not sure either way personally. But saying we should leave the ECHR because more people feel that they should expect decent treatment
from the State and when they don't get it take action to correct that mistreatment seems bizarre. I do see what you're saying about criminals insisting on their rights but they are also human beings and ensuring that the rights of
everyone when it comes to their interactions with the State are respected and protected is surely vital. Again the ECHR isn't anything to do about me punching you (not that I would, hopefully our disagreements aren't that combative

) and leaving you afraid to go outside, it's about making sure that when I'm rightly arrested the State the police doing so don't just rough me up a bit and then sling me in hole and forget about me because you're a member of the Governing political party and friends with the local MP so they arranged it for you (by way of example, I have no idea whether that's the case or not!!!).
The far, far, bigger problem is people being murdered, raped, badly injured, robbed, burgled, defrauded, etc. by criminals.
How does leaving the ECHR help with that? Surely the solution to that issue would be properly funding the police so that they can provide a visible deterrent (bobbies on the beat!), with the necessary resources to conduct their investigations swiftly and effectively, properly funding the CPS so that they can review the evidence given to them by the police quickly, making accurate charging decisions and preparing their case papers comprehensively and engaging with the courts and defence team properly. We should surely fund the courts themselves properly so that court building are fit for purpose, that there are enough judges sitting in the available court rooms to ensure that cases are heard quickly. We should be funding legal aid to make sure that anyone who is accused of a crime can access effective representation that ensure that their defence is conducted properly to assure is that the guilty are being found and the innocent released, that courts aren't getting bogged down dealing with self-representing defendants who don't know what they're doing. That we are properly funding our prison system so that the convicted aren't just dumped into run down and dangerous prisons which do nothing for them but house them in degrading conditions for a fixed period of time before releasing them back into the wild with almost no attempt to actually prepare them to re-enter into society and, often, end up releasing them more equipped to continue committing more crimes.
I agree crime is a problem and I'd love to see a Government take it seriously and address the massive issues within our criminal justice system. But I don't agree that leaving the ECHR does anything to address that problem. It isn't the ECHR that has driven any increase, real or perceived, in crime in the UK. It is an issue of the Governments making from decisions that they made from cutting the numbers of police officers, reducing the funding for the CPS, closing courts and cutting court funding, disastrously privatising probation services and underfunding prisons and prison officers.
I would have expected better of you than to make such obviously absurd comparisons - since I'm sure you're aware the UK is nothing like either Belarus or Russia in terms of political system or how the Government treats its people.
I mean I was a little disappointed by this to be fair:
If you think the right to life is absolute, how on Earth do you account for that, on all the available evidence, every single person who has ever lived either has died or will eventually die?
Because that also seemed very absurd coming from someone who I often disagree with but otherwise respect!
Not being in the ECHR no more aligns us with Russia and Belarus than it does Australia, Canada or New Zealand - all perfectly well functioning democracies that generally respect the human rights of their populations without being in the ECHR. I could also cite the USA, although I realise that's maybe not such a good example with the obvious question marks over the state of democracy there and issues with how some of the population have been treated.
I mean personally I'd be quite keen for other countries to join the ECHR (though some rebranding required obviously!), or a similar perhaps UN led body, regarding a respect for explicitly defined Human Rights with at least some measure of enforcement as is provided for by the ECtHR. I'm not sure that just saying "well no-one outside of Europe needs the ECHR" is that compelling either when you consider that outside of a handful of examples (I think you could probably add South Korea, Japan and Taiwan with some qualifications to that list) Human Rights aren't doing all that great at the moment globally.
Most of the other organisations you cite specifically deal with how nations interact with each other. Clearly, it's impossible for nations to interact without agreeing some rules on their behaviour etc. as well as organisations to manage transnational activities - hence organisations like the UN or NATO.
I take your point and it's encouraging to hear at least there is some sort of line. It's occasionally felt that some on the right-wing side of the spectrum won't be satisfied until the UK has left everything!
But stuff like the later protocols that ban the death penalty do not fall into that category: Those protocols represent clear interference in the domestic politics and the internal judicial system of countries in a way that is not justified either by the necessity of dealing with international relations or by anything fundamental to do with legitimate governance. It's up the voters of each country to determine whether they want to have the death penalty for certain crimes.
Though, of course, the elected UK governments ratified all of those protocols. Often being amongst the first to do so...
An entirely separate and secondary reason why I tend to support withdrawing from the ECHR is that I feel it's become overgrown and has started to extend its reach beyond basic behaviours required of any decent society into unduly interfering in matters that are more rightly for each country's electorate to decide - and the issue of the death penalty is probably the best example of that. I think that's possibly connected with that the ECHR doesn't really contain any mechanism to review its provisions to ensure they are still uncontroversial and appropriate. Human nature being what it is - the inevitable result is that - just like any bureaucracy - it grows over time and tries to extend itself into new areas. Really, to be sustainable long term, an overarching legal framework like the ECHR needs to have some mechanism to prevent the natural bureaucratic tendency to keep growing.
But the ECHR only grows in ways that the members within the Council of Europe wish it do so and the membership of the Council is drawn from the Governments of the member states. If the Governments of the members did not want to, say, abolish the death penalty it would not have been abolished. We might not directly elect the Council members but they are drawn/chosen from/by our elected governments. If there hadn't been a groundswell of movement within European countries at large to abolish the death penalty then it would not have been abolished by the ECHR.
It is notable perhaps that the ECHR lagged behind a great many countries abolishment of the death penalty in peacetime. Protocol 6 (peacetime abolishment) entered into force in March 1985 by which time the overwhelming majority of member of the Council of Europe had already abolished it in domestic law. Similarly Protocol 13 (wartime abolishment, the defacto abolishment in all circumstances) entered force in July 2003 by which time the overwhelming majority of members of the Council of Europe (which by that time included a lot more countries following the end of the Cold War!) had similarly abolished it in domestic law.
It doesn't look to me like the ECHR is over reaching its powers but reacting to changing circumstances. By 1985 most countries had decided that the death penalty in peacetime (and in some places wartime as well) was no longer an appropriate criminal sanction. So that was codified within the ECHR. By 2003 most countries decided that the death penalty in any situation was no longer an appropriate criminal sanction. So that was codified by the ECHR. If it had been the reverse then it would be a different kettle of fish but the members of the Council of Europe lead and the ECHR followed.