I've found this to be a funny framing on the left because it always ignores what happens when the group stops being outcast. It's always a framing based around the current time and conveniently orients itself around the mores of the current era. Anime and otaku interest groups used to be like this in the '80s and '90s, generally ideologically aligned, creating parallel economies, in response to attack and scorn from the outside. Then it became mainstream. The stigma in liking anime went away. And with it the pressure to organize against the mainstream.

We need to think about durable small organizations, not ones that are based around the social mores of the moment. The magic of a neighborhood group is that as long as people live in an area together there will be neighbors.

FWIW opposition-based interest groups have a long history in pretty much every state we've ever had records of.