> Everyone agrees this is an uphill battle
No, most people don't care about having this battle - that's the point. If there's no demonstrable reason to leave (e.g. "former president got banned from major platform, so go to new platform") then the - valid, if personally boring to you - point is: how will you persuade people to leave it?
Most people don't care about the platform that's used if there's enough buy-in.
I was part of something similar a few years ago at a local makerspace. We were using Meetup.com for a while then someone relatively new suggested we try using Discord instead. There wasn't much of a convincing reason besides "let's try it", so a bit over half of the active people gave it a shot, and everyone else followed since that's where the activity was.
While a few people were initially grumbly over making a new account, there aren't many complaints now that we have bots to help with calendars and a bot to help us monitor equipment.
> most people don't care about having this battle
That is also true of every advance society makes: Most people are happy the way they are. It's an obstacle every innovator and leader faces. Yet somehow, we make changes and advances.
Good question, let's try to answer it. Suppose OP believes they have a serviceable replacement in place. What arguments could they use to convince their communities to switch to it? Here's some ideas:
- No ads.
- Free, even for business-use.
- No algorithm interfering with visibility.
- It's usable by community members who do not have a Facebook account, for whatever reason.
- Allows for more free-form content.
- More choices for content delivery format & notifications (say, email, text message, newsletter links).
Maybe you can come up with some. What would you find to be a convincing argument to switch to a community-owned organization platform instead of Facebook?