> All people are responsible for the sins and crimes of their ancestors so long as they have not taken any steps towards teshuva.
what is the source of that? I learned that when people continue aveiros of their parents, then they are punished. It is, of course, often a case when a nation continues on the same path as usual, taking previous attitudes for granted. Still, post-Soviet countries went through a lot of changes and they might not have kept same attitudes. I think when we talk about a fully autonomous aggressive nations, like Germany, Russia, then they can’t be treated normally unless they did a formal teshuva, reparations, etc even if this cannot return the lives lost (something Germany did and Russia did a little in the 90s), but it is a different thing when you talk about countries that were subjugated themselves, like Ukraine. If they changed their attitudes, then this should be enough. I am not saying they did, I don’t know enough, although electing a Jewish president with 80% and fighting Russians like they do show something.