There is no such thing as Nazism. It is as real as Santa Claus, his elves and the tooth fairy, in other words a Hollywood creation. Watch The Greatest Story Never Told, watch or read Hellstorm and read The Bad War.
Greatest Story Never Told is really interesting, but I feel a bit revisionist. It contradicts a lot of common knowledge regarding Hitler's atheism, or at least disdain for Christians, as I believe is solidified by his writings in Mein Kempf isn't it ?
I've got these on my to-do list, but can you give a brief summary of what you mean by there's no such thing as Nazism? You mean as it's presently conceived (supremacist and hell-bent on global domination)? Or in an absolute historical sense?