I never hear people talk about this. He had to be insane.
Hate. He was deceived by Satan. Many people have paranoia, or OCD, or Anxiety, but that doesn't make a person hateful. He probably had Antisocial Personality Disorder (An extreme form of narcissism where people have NO empathy or caring for others. It was called Psychopathic behaviors before)
I had thought that, but one could argue that he did care about the German people. At least the white, Catholic ones. Although one could also argue that it was all to serve his own thirst for power and control. So maybe this is right.
He was a psychopath. Plain as day.
I remember being taught in History class that he was actually insane. And that it was caused by an untreated case of syphilis.
Illusions of grandeur.