I have a hypothesis about the opposition to genderwang at the social movement level. Previously, I have noted that the first generation of anti-genderwang leaders were pretty much all survivors of childhood sexual abuse or domestic violence or escaped from a cult.
But at the social movement level, why were conservative Christians, Muslims and second wave feminists the first organizations to mobilize against it?
I would argue: the problem of the proximate other, "too much like us." Radical feminists knew the danger of running further down the field than they had on pretending male and female bodies and brains are basically the same.
Conservative Christians knew the danger of going any further on the body/soul dichotomy and the effacement of the physical world than they already had.