A thread spirals into meaninglessness and frustration every time Hitler is brought into it, DD.
I totally agree Gopher!
This is another persistent misunderstanding with regards to atheism. Because many people associate communism with atheism, it has only recently become known that Stalin was a pious man. He secretly prayed in an underground Russian-orthodox chapel --- DAILY! Now, if there's one thing uniting atheists it's that they do NOT pray in a chapel!
So, what about Hitler? As an Austrian, he was born and raised a catholic but probably left the church. Does it imply he became an atheist? Not at all! He got involved in occultism and thoroughly intrigued by Germanic pagan gods.
Conclusion: Both Stalin and Hitler rejected organized religion because it interfered with their own power, but they never denied the existence of (a) higher being(s). Since that is the very definition of theism, they cannot be called atheists.