Who knows what Hitler actually believed. In public he believed what was expedient. He took advantage of antisemitism in the Catholic and Lutheran churches. He took advantage of the Vatican's fear. The churches should have protected the Jews but did not. They weren't the only ones. What I find scary is that there have been other wholesale ethnic killings since and I'm afraid will be more. I don't like Muslims generally, but I don't want to see Muslim holocaust or even something approaching one. I don't want to see another holocaust of any kind.
If there is a god, I want to believe that there is a god. If there is not a god, I want to believe that there is no god.