This keeps getting deleted and/or locked in r/austin , and it looks like media is trying to keep this hush. So, I thought I'd put this here for awareness.
There's some organization in r/50501 , but as you might have seen in /c/reddit or other places, we're entering an era of controlled media in the U.S.. So, I don't expect that subreddit to last too long. If it does get banned, I think the fediverse is the best place to mass organize - discord/slack/signal or whatever are probably too obscure to organize large numbers of people.
I can't speak to the merits of this protest (if it will be effective, what it's goal is, etc.), but I thought you should at least know about it.
OK, but what message? I've seen a few announcements saying that there will be a protest, but the best "message" I've seen is "Say No To... *gestures broadly*".
That's not exactly a cohesive protest.
Edit: ok, this post has more information and plenty of discussion. Maybe I'm just subscribed to the wrong communities, but it seems like every post was just some variation of this image and no further information.