I would expect it’s due to suppression on mainstream platforms.

And unlike hate-based subcultures like you find in conservatism or disgust-based subcultures present in traditionalist circles which require some targets to criticize hosts to sink their mandibles into and suck the blood out of, the LGBTQIA+, Anti-capitalist, Furry, Weeb, etc subcultures are quite happy existing without the presence of bigots, corpo-simps, or chuds in general.