That's the old belief ~ turns out it was false.
Many religions are unbending in their dictates and there is nothing wrong with that. As far as I know, there is no religion based on democratic principles. So would you call someone in the west who believes in "moral absolutes" a fascist?
Fascism is a convenient negative term to describe a negative phenom., but it's not accurate and doesn't do anything to increase our understanding of either radical islam or fascism's place in world history, i.e. WWII.