Many of the seminal writers of what the author calls The American cult of political correctness in universities, like Derrida, Foucault, de Bevoir, Butler, Adorno have all been influenced by Nietzsche.

I haven't read any of those authors nor Nietzsche, and I have no idea whatsoever about the political correctness that goes on in the USA so I'm not trying to make any kind of point.

I just find it funny that conservatives have a certain pop idea of Nietzsche as some kind of more serious Ayn Rand, while actual Nietzsche scholars have actualized his ideas in all kinds of directions.