Try Richard Evans' "Third Reich" trilogy for a dispassionate study of the evolution of the SS.

It isn't a simple matter of the SS accidentally taking Hitler seriously. His ideology was always genocidal, even when he was just an imprisoned agitator. And, as Thucydides noted, the longer a war is fought, the more excessive the means by which it is waged.

Pure statistical discrimination. Lump the "Gypsies, Tramps, and Thieves" into the same category as gypsies, tramps, and thieves.
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[The movie business] is a cruel and shallow money trench, a long plastic hallway where thieves and pimps run free, and good men die like dogs. There is also a negative side. - Hunter S. Thompson