Hitler didn't carry out the Holocaust. The people he inspired by words spoken or published by Hitler prior to the Holocaust heard all about “Blood upon the cross” not “We are all descendants of apes, but we are the SUPERIOR descendants of apes.” and they NEVER heard him reject Christianity.
The people who carried out the Holocaust were inspired to commit genocide by talk of “internationalist bankers”, “blood upon the cross”, and “mongrel race of vermin”. They were not inspired by talk about any misunderstanding of any Scientific theory.
You seem to have some trouble with the word. The book was written contemporaneously -- i.e. Hitler's actual words were written down while he was still alive -- with Hitler.
Hitler didn't carry out the Holocaust . . .and they NEVER heard him reject Christianity.
Well, the people who did the hands on stuff certainly had that impression: