I'm a half-breed. One set of grandparents are from Finland, and left while Russia was oppressing them. My cousin in Finland said he thought my Grandfather left out of fear of being drafted by the Russians.
The other set of grandparents were Germans. My Grandfather escaped as a child from Russia. His home was in the Ukraine.
I say all this to explain that I'm fully on board with your sentiment. I don't know how much Churchill could've done?--my wife is English, and I hesitate to put the British down! Since I'm not an American Democrat, politically, I won't hesitate to put Roosevelt down!
Sometimes it's purely a matter of pragmatism, to avoid further conflict. Perhaps it was "kicking the can down the road"--I don't know.
But you're right. The Russians, during the Soviet era, were brutal in oppressing Eastern Europe and controlling all those countries. God brought about their deliverance during glasnost, regardless, and I thank Him for that.
Nevertheless, Eastern Europe is corrupt. And this invites more powerful forces to come in and establish order. I'm not convinced yet on how we should act. The U.S. isn't lacking its own corruption. I invite you to watch the story of Hunter Biden on Fox Nation.