Is there a niche social network need?

Which social media network we are using these days is a niche social media?

Usually (I’m not saying it’s impossible, but usually), people create small clusters and make the niche for their like-minded groups.

But why would building a social media the other way round can thrive? Not too sure.

No, I don't think so. No networks and no more communities

Linking to a timestamped conversation of the my first million podcast just put out today
https://youtu.be/A58P2xKrlTs?t=794