It gives boring and unremarkable people a way to feel remarkable. They just don't realize it's only because there's a tribe that supports their indoctrination solely to gain cynical power, rather than actually caring what retarded labels they invent for themselves.

Leftists only allow a few avenues of expression that doesn't get you mobbed. Hair color and shit like that, and personal labels, as long as they support the current thing. These NPCs want to be unique within a very safe framework. I'm a sheep with pink fur. I'm a two-spirit sheep. I'm a non-binary, trans, differently-abled, un-housed, neuro-divergent sheep.