A history teacher picks apart causation and blame in history studies:
What’s striking about conversations involving this topic is the extent to which students are willing (often through no fault of their own) to attribute events to ideologies – as if Nazism itself were responsible for the Holocaust. Regarding Nazism (and Fascism, too), I stress that, without Nazis, Nazism (as an ideology) would have been unable to do, well, to do anything. This, I think, is key: that students confront the idea that systems of belief are not, in and of themselves, capable of destruction. Ideology becomes dangerous – in a historical sense – when individuals activate their core tenets.
My italics.