I can offer no defense of the opposing point of view right now in regards to purely anonymous distributed unstoppable peer-to-peer communication.
I can offer this review of what was wrong with Parler in particular: https://mattstoller.substack.com/p/a-simple-thing-biden-can-...
"In other words, we have what should be an illegal product barred in a way that should also be illegal, a sort of ‘two wrongs make a right’ situation."
I think this is why so many of our choices seem tough right now: We made the wrong decision to get to present state, now any decision we make also looks wrong.
We need to go back and rethink some things...