Two countries (Latvia and Estonia) have already flipped to the west (NATO members). Ukraine is torn between Russia and the west (that's what Maidan morphed into after starting off as an anti corruption protest). Lukashenko was engaged in a struggle with pro western opponents.
There's a proxy war going on on its borders. I don't think this is about Russia trying to dominate the world. I think it's about Russia wanting to buffer its most exposed border.
If Western Canada joined in an alliance with Russia and Eastern Canada was run by a pro American dictator do you think America would behave differently?