Is Nietzsche the devil? Did he inspire fascism, genocide, Communism, and consumerism?

Communism - definitely not. Marx's writings are derived from those of Kant ("Idea for a universal history with a cosmopolitan purpose") with its umptions of a privileged discourse and a scientific model based upon reason. Nietzsche's version of perspectivism was picked up by the post-modernists in the 1980s when they wanted to undermine Marx, Kant, and Plato.