Fascist is descriptive and makes perfect sense here

Seriously.

Moldbug (Yarvin), who is intellectually upstream of the tech-authoritarian movement, explicitly claimed the term reactionary and spent so many words strawmanning concerns about fascism he de facto claimed that term as well. And either term is a hell of a lot more accurate than "conservative", which [unfortunately] continues to be in use as an emotional fig leaf over what is actually a radical agenda of destruction.