Hilter was both a socialist and an evolutionist.
I really don't know why you'd attempt to draw Christianity into that equation, unless you're stipulating that socialists and evolutionists are, by definition, anti-Christian.
Hitler, and the majority of Germans during the time of Nazi Germany, were Christians.
When looking at the language Hitler used to whip up hatred of the Jews “blood upon the Cross” and “cast the vipers out of the Temple” took center stage.
As such the Nazi’s were drawing upon a long and storied tradition of prevalent anti-Jewish sentiment among European Christian communities.
Which is not to say that Hitler or the Nazi’s were “good” Christians; but they thought of themselves as such, wore crosses, prayed, carried Bibles, put crosses on their equipment, wrote “God is with us” on their belt buckles, etc, etc.
All the trappings of Christianity, but none of the spirit of Christ.
Reminds me of several posters on this forum.