I think that decentralized solutions to the Web mostly suck because they're worse to use for the majority of people. But if the Web becomes useless for things people actually care about, decentralized solutions will creep in. People won't simply give up, the things that work will become better in the ways that serve prospective users.

That's kind of the worst case scenario, though, where bad politicians don't get removed from office. We can hope that most people will decide that enough is enough, or politicians will quietly back down when they realize they're dooming their own careers.