I agree with you to the extent of being very concerned about what Russia and Putin are doing. And I hadn't realised there were elections in Hungary coming up. Yes, that's something we should pay attention to.
It is a major worry of mine. Hungary is important for quite a few reasons, but one major issue is the unresolved historical grievances against her neighbours. In particular, parts of Ukraine and Romania have large Hungarian minorities, and Fidesz have very carefully cultivated the cult of Orban there. If Orban wins, one frightening prospect is that a Ukrainian loss will result in Hungary 'going rogue' and claiming part of the country for themselves. Orban will have nearly nothing to lose at that point, as none of her neighbours are capable or willing to mount an offensive attack to defend Ukraine in this circumstance.
But I think you're in dangerous ground talking about 'Russian mentality'. We've seen lots of brave Russians opposing the war and being arrested for doing so. The very fact that Putin's regime cracks down so severely on dissidence shows that they fear those Russian citizens who do believe in democracy. Ukraine, Moldova, Latvia, Lithuania and Estonia and Georgia all spent about 70 years living as part of the same country as Russia and being ruled by the same Soviet Government, so would be likely to have to a large extent inherited the same political mentality as Russia - yet they all transitioned to democracy.
In fairness, Ukraine, Moldova and Georgia are rather unstable democracies. The Baltics are stable, but they were very much held by the hand by Finland and Sweden during the 1990s to make sure that they didn't stray from the path.
However, there is clearly something different about Russia. While I don't like to speculate, there is the point that Russia is not really a single country at all, but a disparate collection of peoples who have little in common with each other. That lends itself to single party rule and a strongman leader, as Yeltsin was a textbook case of an incompetent leader who was leading the country to absolute ruin.
Belarus didn't, and it's clear that was entirely due to the path chosen by the guy who won the first elections there. Russia did have a democratic period for about 10 years after the collapse of the USSR, but that went badly wrong leading to an economic collapse that - as I understand it - wasn't shared to the same extent by the other ex-USSR countries and appears to have resulted largely from the well-meaning incompetence of Boris Yeltsin. It wasn't inevitable that Putin would become Russia's president, and I don't see any significant reason to doubt that the way Russia and Belarus took a different path from other European ex-USSR states was mainly because of the choices of those individuals who found themselves in charge during the 1990s and early 2000's.
I wouldn't say Belarus was entirely due to Lukashenko. The country was quite reluctant to embrace any kind of democracy, and I think that was partially due to the uncertain and insecure status of the country. Unlike the other European Soviet states, Belarus was an artificial creation, and perhaps it explains why they never really shook off the Soviet mentality. But yes, Russia went to pieces during Yeltsin's rule, despite the West being quite willing to oversee the reconstruction of the country. It wasn't entirely his fault, but he should have stepped aside after thwarting the 1993 coup.
But more to the point, I think it's mistaken (and borderline racist) to effectively write off an entire population because of the failings of their leadership. I don't want to see Russia broken up - I want to see it restored to democracy so it can rightfully take it's place amongst civilised and free countries.
IMO, I would be happier with Singaporean-style 'democracy' there. The democracy experiment ended badly in Russia, and there is some evidence that they prefer to have a strongman in power, as it also stops warring and feuding between individual parts of the country. You're right, it is borderline racist to write off an entire country in that way, but I think we also need to be pragmatic about what can be realistically achieved there. If there's no will for democracy and the people are content with a strongman ruler, shouldn't we try and encourage them to at least have a strongman who doesn't go starting wars?
Strangely enough, I think Lukashenko would actually be a good ruler for a country like Russia. His anti-war views and general competence in running the economy would fit Russia well, and it's worth remembering that Belarus has never really pulled any stupid stunts with her neighbours under Lukashenko, minus the one issue with the Ryanair flight recently.