Maybe it's part of now firmly entering what is (though it doesn't really feel like it) middle age, but this is sort of my sentiment, too. Sure, keep an ear open to the discourse so that you're aware of key things that are happening and can decide how to react. However, avoid all the bitchfights and posturing (by which this inevitably means avoid most online stuff). Focus instead on meaningful actions, primarily community-building.

Sure, a protest is a very visible sign of disagreement. But endless online bitchfights are not and only tar people with a bad brush and scare off any more moderate people who had the possibility of coming round to your point of view. Plus they put you in 24/7 crisis mode, exhausting you. If everyone who's so eager to argue instead picked one thing in their local community to volunteer for and actually did it, maybe our local (even our local-physical!) communities could get better.