Hitler, Pol Pot, Stalin, The Crusaders, The Inquisitors, and countless other butchers throughout history, have perverted both reason and religion to accomplish their aims.
But the abuses of Hitler were not an indictment of reason, any more than the abuses of the Inquisitors were an indictment of the teachings of Jesus Christ.
Hitler's actions objectively defied reason.
The inquisitor's actions defied the teachings of Jesus Christ.
Although both Hitler and the Inquisitors thought otherwise, they were both objectively and demonstrably wrong.
I don't see how anything can be objectively wrong in a Godless world view, but I sense will never be on the same page, so I respectly will allow you the last word if you so desire. Cheers