The Vatican's official exorcist claims that Nazis weren't really bad guys, they were just possessed by Satan. Same for Stalin and his cronies. In the words of Father Gabriele Amorth, "I am convinced that the Nazis
were all possessed. All you have to do is think about what Hitler — and
Stalin did. Almost certainly they were possessed by the Devil.
“You can tell by their behaviour and their actions, from the horrors they committed and the atrocities that were committed on their orders. That’s why we need to defend society from demons."
Father Gabe also tells us that Pope Pius XII, who was Pope during WWII, tried to exorcise Hitler long-distance, but was unsuccessful.
Maybe it's because Hitler really was a deranged, evil madman, not simply a pawn of the devil, Gabe!