Queer theory goes back further than Money, who was merely working through the praxis. Simone de Beauvoir's 1949 work The Second Sex lays a lot of the foundation for modern rhetoric, such as, "One is not born, but rather becomes, a woman." Tangentially, she also crafted the narrative that a fetus is a parasite and pregnancy is an act of violence forced upon women by men. Like many of the French post-modernists, she also signed the 1977 petition against the age consent.

Going back even further, the Institut für Sexualwissenschaft in Weimar Germany was doing tranny kid stuff decades before Beauvoir's book, although the Nazis burning it all was a bit of a set back in the history of Progress™. This seems to be a recurring trend for civilizations in their age of decadence, which is the last step before collapse. In ancient Rome, there was the cult of Magna Mater. Men would chop their junk off then wander the city dressed as women in wigs and makeup begging for money.