>the fact that Google has continuously failed to do that one thing is a testament to how difficult it is
Their network had nothing to pull people into. Parler didn't have that problem, in fact, I hear it was doing relatively well until they collapsed due to their own technical incompetence.
>Then in the case of censorship, you have to deal with being a persona non grata that socially conscious people and institutions won't touch, and that you need to build it in like a month before any political momentum gained dissipates and people move on.
Again it seems like we had evidence of a platform that managed to overcome this. Maybe I could have my memory wrong but Parler started off small, got promoted quietly by right wing people but was somewhat ready to organically grow as discontent grew among right wing people on existing platforms. Maybe it was just a honeypot all along (as some say) but it feels like they could have been an example that disproves your theory. The pieces were definitely there.
>Even if you manage to succeed after all that, and get adoption, all you have done is manage to create the same type of platform that censored you in the first place, with the only difference being that it is your hivemind of your own beliefs.
I wonder if liberal people went on Parler and confronted right wingers. I know they gladly ban people for doing the same on /r/Conservative but Parler being a "free speech" platform I wonder if they just let people be as they are.