Older people in these countries have good memories of that time, employment and housing were basically a given, healthcare and public transportation were solved, etc. They're very easy to manipulate, promise them a 13th month of pension and they'll vote for you.

I don't think you understand how bad globalization fucked up these countries, people live with their parents until they're 30+, young people can't find decent jobs, etc.

No, globalization gave them as a nation a chance and they mostly didn't do any serious effort to use that. Its 1000 little decisions here and that that led to some post-soviet-sphere countries to thrive, while others stumble and generally gain prosperity mostly from being dragged into it via EU membership. Ie specifically Slovakia is / used to be a big car factory for whole EU due to low salaries. Not really something to build long term success on, ie if Ukraine would join EU all of those foreign factories would move even further east.

Sure, we can blame politicians which were mostly bad to worse and stole everything that was previously state-owned (meaning everything). But folks kept voting for them in similar fashion you describe so this is the result, its trivial to 'buy' votes with relatively low budget. I mean current PM has very tight and visible connections to Italian 'Ndrangheta mafia, he or people around him did a contract murder of reporter looking into that. He didn't ever faced jail and is back being PM like there is no tomorrow. There is only so much blame one can point outwards, you can't be dumb / do dumb shit and expect long term marvels of prosperity on Switzerland's level.

Lived in both of those countries, and they look exactly as they should given overall population efforts towards hard work, honesty, rule of law and so on. If US would be a nation of slackers and thieves it would also look very differently to how it is.