It is difficult but not impossible. Everyone switched from Myspace to Facebook. Thing was the Facebook offered something different. But it did start small. The way you defeat network lock-in is by fighting against it hard. It definitely is not easy. I lost friends when I deleted my Facebook. But truth is, they weren't people I frequently talked to anyways so it is probably better to call them acquaintances. The thing is that I've contacted plenty of those people years after nothing and they are all happy to grab a beer. But we pretend that this isn't the case. We say "Yeah, I'd do that, but they wouldn't." Or something similar.

Though I'll admit, getting people to switch to Signal was a lot of work. People like Elon and Joe Rogan helped onboard a lot of the people that were holding out. One group chat has a member that is only there because everyone else bought in and he complains, but uses it (big WA user).

I don't think people calling for disconnecting are unaware of the difficulties. Ripping off a bandaid hurts, but the thought of ripping it off often is more painful than the actual experience.