Regarding your last point, what do you think the practical implications of this are for those who seek social change? While there are plenty of obvious examples

Regarding your last point, what do you think the practical implications of this are for those who seek social change? While there are plenty of obvious examples of what you're talking about, I worry that it's dangerously psychologically attractive to dismiss any and all criticism as bad-faith bigotry, at the expense of potentially convincing those actual moderates. That's especially true if the topic is personally sensitive and/or it's the nth repetition of a particular talking point. In a moral sense an explanation might not be owed, but that often seems like ceding a pragmatic opportunity to push for change. It feels like there's a narrative metagame where there's a risk that taking concern trolling too seriously is a vector for being baited into savaging increasingly innocuous questions from actual moderates. And since people seem, generally speaking, to not like being told to sit down and shut up even in the service of causes they could otherwise be brought to support, I worry that could broadly harm public sentiment towards movements that go too hard into these kinds of tactics.