Agreed. My preferred approach would be to take proportionate measures to protect the elderly and vulnerable but otherwise to allow the virus to run through the healthy, younger parts of the population unmitigated as far as reasonably possible to build up some herd immunity, thus making it safer for those who have not caught it to come back out.
I would introduce a non-mandatory shielding recommendation for over 60's and those with underlying conditions, and this would be fully paid if someone had to quit work, by the government.
I would properly lock down care homes (no visitors, staff living on site for weeklong shifts etc), as the damage the virus can cause if it gets into one is very bad indeed.
I would cancel all mask mandates and enforced social distancing (and contact tracing), provided hospital capacity was sufficient as the virus works through the younger demographic.
This, in turn, would build up herd immunity in the population, and once this has been achieved, it would really depend on the % herd immunity built up in order to determine the best approach from here.
The current approach is just completely bonkers. It's over-the top, follows no clear strategy, and has no clear aim. It's a completely illogical approach which perfectly compliments this cabinet.
With an R number of 3 and an incubation time of (on average) 1 week, I imagine it would go (as a very, very rough estimate) as follows:
Week 1 (now), roughly 3,000 infections per day (21,000 infections total)
Week 2, roughly 9,000 infections per day (84,000 infections total)
Week 3, roughly 27,000 infections per day (273,000 infections total)
Week 4, roughly 81,000 infections per day (840,000 infections total)
Week 5, roughly 243,000 infections per day (2,541,000 infections total)
Week 6, roughly 729,000 infections per day (7,644,000 infections total) (10% Herd Immunity achieved)
Week 7, roughly 2,187,000 infections per day (22,953,000 infections todal) (33% herd immunity achieved)
Week 8, roughly 6,561,000 infections per day (68,880,000 infections total) (103% herd immunity achieved)
Of course, there would be mitigations put in place at any point that it looked like NHS capacity may become overwhelmed, and I'm aware that the young demographic does not represent the whole of the population (I suppose the under 60's must be the majority though). If we started allowing it to run unmitigated through the young (and basically non-vulnerable) demographic, we would have achieved herd immunity by mid-November at the absolute latest.
Of course, I'm aware that allowing 1,000,000 infections is very risk in terms of hospital capacity, which is why, if hospitalisations and deaths started to rise, I would introduce mitigations to keep the NHS at roughly 80% of capacity, to ensure nobody got denied treatment who required it.
Considering all of this, the above strategy is still likely to present at least some risk of overwhelming the NHS, so instead let's aim to keep infections around roughly 200,000 per day.
75% of the UK population is 49,000,000
It would take 5 days per million people to get infected.
This means that it would take roughly 245 days to reach herd immunity. This would look at the pandemic being completely over around May next year (however, bear in mind the amount of people that are likely already immune, it would be looking like early next year, perhaps Feb/March at the latest).
The only issue with this would be that those vulnerable would be unable to spend christmas with their families, which would have a profoundly huge effect on mental wellbeing. I can't think of an easy way around this, but I do not believe that continued suppression and aiming for elimination is at all sustainable.