Yeah that's why I used the word "legacy". He took part in the Yalta conference and along with Churchil they basically gave away Polish sovereignity to fucking Stalin. They also gave away Albania, Bulgaria, Hungary, Chechoslovakia, Romania and East Germany. He literally trusted one of the original invaders in 39'. He is the main reason the cold war even happened.
Oh. The Yalta Myth, I should've guessed. A contender for the founding enemy within type myth for the modern American far right.
What do you think they should have done instead? Immediately gone to war with the Soviets? Congrats! WW3 is much worse than the cold war.
The Soviets already held nearly the entirety of Poland by the time of the Yalta conference. The rest of the allies probably couldn't have done anything to prevent that level of Soviet imperialism, even militarily. See: operation unthinkable, the korean war, the chinese civil war