Ideology and Nazism.

 

Hitler and the Nazis may well have appropriated both the work of Friedrich Nietzsche and the Bible to justify their horrors, but I don't think that you can blame either Nietzsche or Christianity for what Hitler did. 

Many German Jehovah's Witnesses were executed for refusing to serve in the German army or finished up in concentration camps, and they were Christians. Not all Roman Catholics colluded with the Nazis. 

Nietzsche was well aware of the connection between demagoguery and stupidity. He viewed political parties with deep skepticism, arguing that they rely on manipulation, destroy independent thinking, and reduce complex ideas into simplistic dogma. To appeal to the crowd, he said that political parties are forced to "transform their principles into great frescoes of stupidity." No ideology is wholly absorbed by its adherents. It breaks down in practice in a thousand different ways under the criticism of impulse and of experience. 

The Russia writer Fyodor Dostoevsky seems to have believed that any plan that was aimed at changing or perfecting human nature, was likely to end in failure because man's main defect was his chronic perversity. He thought that man's desires were not reasonable and that he often acted contrary to his own interest and common sense, but that is what made him human.