Maybe it's ok to create something that isn't for most people. That's how the internet started out. It's only gotten worse the more accessible it became to most people. Maybe it's a good thing to create a split based on capabilities and technical know-how.
But we already have a bunch of social networks that are not for everybody. The problem is that social networks are pretty much a winner-takes-all market due to network effects.
We do and many of us prefer it that way. I’m not on any major social media because I personally consider it asocial — you can’t have that many actual friends or acquaintances. My «social media» is a handful of smaller discord servers and an irc channel, and an extensive webring of personal websites.