I agree that it needs to happen but contacting these places and asking them for an alternative is a lot like contacting a deep sea tube worm and asking it to learn brain surgery.

They're probably capable of moving from one social platform to another, But it's a lot of work and they're destroying their network every time so they're highly resistant.

If Apple wasn't such a pain in the ass about notification services We could probably crowdsource NTFY and let everyone use it for schools non-profits and such

The best we could expect us for them to move to Blue sky. Health in my case half of them just recently moved off Twitter.