Well, what do you mean by "shut down"? If you're talking about people being called out on forums or at the Christmas dinner table for saying something that strikes others as whiffy, I don't know if I have much of an opinion on that. If you're talking about people being excluded from mainstream debate then I would say that it simply doesn't happen. As I say, TERFS are massively over-represented in the national press, in politics, in professional organisations. British public is wall-to-wall TERFS, they are in no way marginalised, they completely own the space. Sometimes this total dominance is challenged and it launches a hundred newspaper columns decrying the woke mob on Twitter but it's paranoid fantasy, the reassertion of dominance, cry bullying.