We ask that questions in this subreddit stick to history as it happened. Consequently, "What If?" question, like this portion of your question:

And had the USSR survived, would countries like Ukraine end up gaining more and more of a sense of nationalistic pride and end up breaking up the USSR, or any other former Soviet State?

Are against the sub rules. While the rest of your question is acceptable, we ask that you remove this "What If?" portion of your question.

Thank you.