There's a quote in a Michael Crichton novel (The Lost World) that seems relevant here. As part of a rant connecting the idea of the internet and evolution, a character opines: "This idea that the whole world is wired together is mass death. Every biologist knows that small groups in isolation evolve fastest. You put a thousand birds on an ocean island and they'll evolve very fast. You put ten thousand on a big contin…
So you're saying a wide varity of echo chambers is a good thing to avoid intellectual monoculture?
Now everyone can live in virtual echo chambers where everyone agrees with them and they never need to compromise. So they start viewing anyone who disagrees with them as pure evil.