Oh, 100%, Helle. If I recall correctly, the same poster also said something along the lines of, well let's all compare fat distributions, waist to hip ratios and q-angles, as if that would be the thing to convince us that he's anything other than a man😅. The irony being that only an outsider to female history, would behave like that and the funny thing is, he doesn't even see it.
An actual female person has no need to do any of that, because, as you point out, everything we say is based on material, not subjective reality and scientific fact, no amount of pretzelling, double speak or obfuscation is necessary.
I've posted this excerpt from Raymond's The Transsexual Empire before, but it seems especially fitting here:
But in some very real senses, female biology shapes female history—a history that men don’t have because of their sex—including the history of menstruation, the history of pregnancy or the capacity to become pregnant, the history of childbirth and abortion, the history of certain bodily cycles and life changes, and the history of female subordination in a male-dominant society. Note that I keep saying history. To deny that female history is, in part, based on female biology is like denying that important aspects of Black history are based on skin color. As with biological skin color, female biology doesn’t confer an essential femininity; rather it confers a historical reality about what it means to be bom with XX chromosomes.
And again, even surgeons who perform such cosmetic operations on male people can't deny material reality:
Georges Burou, a Casablancan physician who has operated on over 700 American men, expressed the superficiality of sex-conversion surgery in these words: “I don’t change men into women. I transform male genitals into genitals that have a female aspect. All the rest is in the patient’s mind.”