I suppose, thinking about it, in part it's because there has been a change in the way the discourse operates, not just for this, but for other things.
In the current political climate, the great horror for all is to be accused of being some kind of bigot, or some specific type of bigot, a misogynist, homophobe, racist, transphobe, antisemite, ableist etc. That is the ultimate sin now in our culture. It's so potent that even people who are dead sure that it is not true feel deeply upset to be called one of those names, groups immediately back off when there is a threat of such a label.
People are not only afraid of the consequences of such an accusation, they are afraid of the moral implications. It's like a preacher threatening his flock with hellfire to keep them on the straight and narrow.