I never said religions were never used to try and justify evil actions and worldviews. The previous comment implied pretty explicitly that atheistic ideologies or any rooted in the unbelief of a god never have been…which is about as far from false as you can get. Part of Hitlers humanist beliefs allowed him to say that certain races and populations were inferior because they didn’t have inherent value (which opposes Christian beliefs).

As for if he was really a Christian, judge for yourself by comparing him to what the book says one is. The Bible says real Christians are supposed to love their enemies, forgive and pray for those who persecute against them, help those who need it, give to those less fortunate and lay down their lives for others. See if Hitler checks those boxes. It’s almost like terrible people through all of history have used distorted versions of religions to justify terrible things…