Later on they find a way to enclose some of the fish too, and eventually all of it, removing it from the public space. The fediverse still exists, but it’s a shell without anything you want on it.
This analogy doesn’t make sense. How are they gonna take what we already have and enclose it away from us? We run the servers, not them.
If they close it off again, we go back to how things are now. Which we’re all clearly fine with, because we’re already here. Are they gonna hypnotize us on the way out and lead us pied piper style?