There’s stuff people can do. Eat less/no meat. Buy an EV. Etc. But then commentators will refute that with all sorts of stuff “one person can’t make any sizable impact,” “EVs are powered from the grid which isn’t carbon neutral”, “EV tires spread particulate emissions.” Etc.
Thing is, denialism and stopping progress makes people looking for solutions also more extreme.
So who knows. Maybe part of the answer is partially ignoring or severely discounting certain Internet discourse.
Edit-so the early replies to my comment highlight my point.
On thinking further, people do need to talk. But the internet is clearly a noisy channel that props up voices that might not even exist outside of a special interest funding them (through bots and well funded campaigns). And people doing futile (because of bigger, larger problems an individual can’t directly stop) personal efforts might act as a pressure release. So what if they can’t turn off a big container ship or stop a wasteful airliner there’s at least doing what they can do. Especially if it’s relatively peacefully and part of normal process. Better than destroying a piece of art in the name of “awareness.”
Edit2-Unless radicalism from the other side is what commentators against individual emissions choices want? Push down thise concerned about climate change so that they do something radical, point to it, and suggest people should just continue business as usual.