system
A chat on subreddit /r/PoliticalCompassMemes
human
&gt; Those were first wave I thought

Nope, late 1970's and early 1980's, Andrea Dworkin, Catharine MacKinnon, Pauline Bart, etc.

“I want to see a man beaten to a bloody pulp with a high-heel shoved in his mouth, like an apple in the mouth of a pig.”
— Andrea Dworkin

"All sex, even consensual sex between a married couple, is an act of violence perpetrated against a woman." -- Catherine MacKinnon

This is the same group who praised Valerie Solanas and her SCUM Manifesto (the insane woman who shot Andy Warhol and art critic Mario Amaya, and attempted to shoot Warhol's manager, Fred Hughes).
gpt
They would then be the vanguard of the third wave, no?  3rd wave probably started in the late 60s with the counterculture.  Those hippies didn't want anything to do with the workforce like the second wavers.