Even though the latter is true, and important, it seems like people are rounding it off as "more made up woke bullshit."
I think there were some commenters who were basically dismissing her and her politics of race - but not necessarily the medical element. It seemed unclear to me whether they disbelieve that there is a medical issue at all or not, but they clearly seem to have no time for Butler.
I think some people also thought she was framing it not as a medical difference that requires looking into, but as an injustice, and objected to that.
But I would say that there is an element where at least for certain public people, they don't have much credibility to discuss these type of things without a reaction, and to an extent some people are a little suspicious of these issues whenever they come up - they suspect an agenda.