You said it yourself, "this is about testosterone and anesthetic sensitivity." (edit: it did before an edit) So why use sex as an abstraction over the real variable if it isn't relevent? This isn't about trans activism any more than it is about "PCOS activism". People are just pointing out that conditions such as PCOS, having XXY chromosomes, and hormone therapy treatment affect the testosterone levels (and thus anesthetic sensitivty) independent of sex. A more clear and correct statement would just talk about testosterone levels. The inference that women tend to have lower testosterone levels shouldn't be anything more than a side note; it's relevance isn't title-worthy.

You're literally explaining why saying "people with higher levels of hormone A or B" in the title (a prominent part of a publication) instead of pseudoscientific bullshit like "the female brain" is not only accurate, but would avoid all sorts of potential confusion.

I also literally never mentioned trans people (sorry, "issues"), you're clearly just a bigot triggered by the mere suggestion of inclusivity of all people, who would reject it even at the expense of accuracy because you're just so hateful, and should feel free to go fuck yourself.