We'll have to walk away from the attention economy, that'll be a journey that each has to take singly, but we don't have to walk back to the 1980's. We can build something that works for communication, but that doesn't work for advertising: something structurally enshittificationproof. It will not attract investors, because there will be nothing to leverage. We'll have to build it because we want it, which has never been easier.
We can steganographically hide it in AI slop which no human has to actually ever see, and we can trick our enemies into hosting it for us for free. It might even be fun.