It's funny how the early web thinking encompassed nuclear war but not the presence of authoritarian government in the East and a zealotic secular religion in the West.
There's an implicit circle in this logic. Manually crafting IP packets is unwieldy to the masses, too, but some kind souls came along and made web browsers to make the crafting of IP packets for the purpose of browsing the web easy.
The only thing stopping us from doing the same for better "obscure technologies" is willpower.
I believe the network effects are stronger than the free speech incentive for most people, after all, that is what current leading platforms bet on when deciding about censorship.
This can be in theory only resolved by the state. Advertisers will adjust, marketing is the most adjustable business there is.
It's a big point of dispute if a state should be able to censor someone, of course, but IMO state should not allow censorship within a global privately owned platform.