The word “fascist” gets thrown around a lot in politics, but it’s hard to find a more apt one for “Unhumans,” which came out last month. The book argues that leftists don’t deserve the status of human beings — that they are, as the title says, unhumans
The most obvious example is untermenche which the nazis used to describe their enemies.
https://en.wikipedia.org/wiki/Untermensch
I can’t imagine that the authors of the book didn’t know this. It’s not quite a dog whistle to neo nazis and white supremecists. More like a bullhorn.