I recently created myself a Pixelfed (a federated instagram, basically) and was pleasantly surprised how my profile has a plain, old RSS feed, so that anyone can "track" me without ever visiting a website (which is something that ActivityPub itself also allows, but AP still forces you to be a part of the "system", so to say).

I'd much prefer that kind of Federated world, but I don't see how we can get there in any other way than spreading awareness about it and basically nagging our friends (at the risk of isolating ourselves) – “I wish I could follow your adventures and thoughts, but I don't want a facebook account”. This of course requires a critical mass for basically each person, and probably a way of automatically updating the locked-in platforms (for each post you push to pixelfed/blog it updates your instagram/facebook) so that the ones who take a step out don't need to leave their locked-in friends behind.

Of all the people who listen to podcasts through some kind of an app, how many of them have created an account anywhere?

I don’t know how it will end, but I’m confident that I’ll keep in touch with the friends that are actually important. Not staying in semi-touch with people I don’t feel the urge to call, send a mail, or invite/travel to is something I look forward to :)

On a serious note, all the tools from before Facebook existed still work. If you need Facebook/Twitter alternative consider Mastodon or Diaspora.