[int_19h]

They can pretend to be decentralized, but they can't emulate the lack of centralized authority.

People certainly care enough about centralization once it's consistently abused in ways that hurt them (which always happens eventually, given enough time). Our existing anti-monopoly laws came about like that.

[flir]

Signal jumps to mind.

Plus I don't see much evidence people care. This argument reminds me of Accelerationism, which doesn't seem to work either.

[int_19h]

People start to care on the edges (e.g. social networks), but there simply isn't enough abuse wrt email yet for opposition to register.