I don't engage in this stuff on Twitter. I've overall had fairly positive experiences on Twitter. I continue to try to figure out how to connect positively on Twitter and on the internet generally.
I don't agree that the only antidote is to go seek out walled gardens and the like. The real solution is to be the change you want to see.
Don't go looking for beefs.
Try to bring solutions, not complaints.
Try to have some empathy for people and assume "They must be having a bad day" or "Wow, they must have a lot of baggage on this topic" and politely decline to get into some shitshow with them.
Remember that having empathy for others (instead of just assuming everyone is simply intentionally being an asshole) doesn't mean being a doormat. Respect yourself. Don't kiss their ass to mollify them or something. Instead, just shut up and quit putting out the fire with gasoline.