Hitler said he modeled the holocaust on the Catholic Inquisition.
Source please.
It is also known that he made use of eugenics as he understood it from Darwinism (as did Margaret Sanger)
I do not know that that is known. How do you know it?
Facts don't lie or have an agenda. Facts are just facts
"God did it" is not an argument. It is an excuse for intellectual laziness.
If your viewpoint has merits and facts to back it up why would you have to lie?