I feel like the majority of people care that much about decentralization. But I also think they don't care that much about centralization.
Often whatever comes first and works is what gets ingrained.
Contrast: if some big corp came along and tried to centralize email, people would (hopefully?) tell them to eff off. But, trying to decentralize microblogging is a big effort because Twitter was there first.
Let's get there first with things then, I guess.
So, uh, in re: centralized email:
It's not completely centralized, but there has been a big trend towards what could fairly be called oligopoly, I think. The average experience of email is, essentially, Gmail.
Perhaps most galling has been seeing universities, where so many of us got our first email accounts & who use to run their own infrastructure, outsourcing their email to the few big providers.
We need counteranti-disintermediation. I guess there's various routes? education (make people aware of the perils of one company running everything); politics (legislation against monopoly of core services); tech (favour p2p rather than server-based?); direct action (don't know how you would do that against google.)
Big job though.
A Fediverse instance for people interested in cooperative and collective projects.