What use is switching to some messenger that no one you know uses?

Obviously you can always fall back on SMS and e-mail, probably, but that is a path to social isolation in many cases.

So, it’s not exactly the same as having two ISPs to pick from but to pretend that your choice is completely free and unconstrained is also a dangerous lie to tell yourself and others.

To solve this … well, I don’t know. Probably regulation? Benevolent tech giants that for some reason decide to push open, federated messengers?