Adolf Hitler was kind to dogs and children, and friends who were nice to him.
Such a personality is not devoid of empathy but rather afraid of the power of it, with a desperate need to be protected from the weak and needy for fear that the very pity of them would overhwelm, and appropriately unforgiving of those who drain the very life with their needlessly pathetic reliance upon it.
Adolf Hitler himself may not have been Psycho, I don't know why people always bring up Adolf Hitler everytime crime, or psychopaths, or anything of that sort is mentioned.
Hitler was religious. Nazism is a religion. World war 2 is not the first time there was a war of that sort, it's all throughout human history. The problem was, if you harm yourself it's irrational.
Can you say that Hitler was rational? It was humans killing humans. It was the war of man against man, just as Hobbes described. The fact that man was fully focused on killing himself does not change the fact that man was killing himself, sure Hitler was nice to some animals, and maybe he was a vegetarian, and maybe he was not a sociopath or psychopath, but certainly the people who made the decisions to kill millions of people, the people who actually were doing that, some of them had to be psychopaths.
So if you want to bring Hitler into this, maybe because you are a Nazi and agree with his religious beliefs, reveal to us how these beliefs could have been positive. Otherwise you are just attempting to throw Hitler into the conversation to make it more complicated. You have to tell us, how the Holocaust improved Germany, humanity, etc.