Or, I mean, there’s always the possibility that critical theory and postmodernism being a threat to free speech is a completely overblown conservative conspiracy in and of itself and there isn’t really a war on free speech. You can’t cite one book from the 1960s that isn’t even widely known, read, or carries a lot of influence today from authors that aren’t even the ones who have really defined postmodernism and use it to decry an entire diverse school of thought. That is called cherry picking.
And, no, the fact that marginalized people are sick of problematic views going unanswered in the name of free speech isn’t evidence free speech is being denied to people. Free speech means the government can’t regulate speech. It does not mean I have to listen to, tolerate, or like your views, and it certainly doesn’t mean I have to be silent while you’re airing them. That would be called freedom from consequences.
Also, you’re assuming I accept your premise that postmodernism and critical theory are what started the panic about free speech, which I don’t, and it didn’t, as is well documented in the book I recommended that you simply dismissed out of hand.