Some wars can’t be won. It can be hard to come to terms with this fact when you’re still on the battlefield, but if somehow you manage to step out for a moment, then the truth will become obvious. You have lost, the people on your side have lost, the villains have won and, if anything, you should have run away a long time ago.
I suspect it’s mostly about network effect.
If enough people they cared to follow were only on Mastodon (or Bluesky or whatever), people would make the effort.
Hell, Eternal September start loooooong before the Internet was easy. When people really wanted it enough, they made the effort - dial-up was maybe “too complicated”, but once the promise of porn was there, they got online…