Abstract expressions are permitted while direct expressions are censored.

Well said! Excellent, articulate post. This reminds me of a quote by Chomsky (ironically so, given his disappointing views on current issues like the mRNA vaccine):
Since the voice of the people is allowed to speak out, those in power better control what that voice says—in other words, control what people think. One of the ways to do this is to create political debate that appears to embrace many opinions, but actually stays within very narrow margins. You have to make sure that both sides in the debate accept certain assumptions — and that those assumptions are the basis of the propaganda system. As long as everyone accepts the propaganda system, then debate is permissible.

I love your closing paragraph here. Those dissenting from the status quo are too often lonely, reactive, and disconnected from the belief in the greater good and real community. Echo chambers have a place, but not if we want to change the system on the whole.