The USSR after WWII was a super power. This isn't a case of a more advanced powerful society wiping out a small indigenous one. This is a case of a political, and economic system being a complete failure.

Communism doesn't work, all it does is bring suffering to the millions who have been unfortunate enough to be its victims.

Good luck, not gonna waste anymore good time after bad. I imagine you'll grow out of your edgy communist phase one day, most of us do.