@SweetHomeAlabaster thanks for sharing that link, read a great comment on there that I thought I'd C&P here:
"Gender is a social construct" is a definitional thing. When we say "Only women give birth" is means something else than when we say "Only women wear dresses" - one is descriptive and the other prescriptive, a rule to be obeyed and not reality that is observed. We needed names for these things, and in 19xx feminist scholars settled on "Sex" for the biological part and "Gender" for the social part. When we say "Gender is a social construct" we mean it is the oppressive set of values and acceptable behaviors a society forcefully encodes into it's members based on their birth sex.
Definitionally, humans are not born with a "gender identity", that does not exist - gender identity is forcefully cultivated inside you as you grow up. However, some people have gender dysphoria, which means they feel a level of discomfort when faced with the reality of their birth sex. As part of the treatment for extreme cases of GD, we lie to those who suffer GD that there they are of the opposite sex, which should relieve some of that discomfort.
In this sense, transgenderism is audience participation therapy. No one will ever look at this man and think he is truly a woman, but he is signaling to us that he has GD and needs our assistance with his treatment, that the kind thing to do is play along and pretend we don't see a man, but a beautiful woman. This is why there's this babying affectation when people communicate with transgender people - why, for instance, Dylan Mulvaney won "Woman of the Year" for being the worst influencer in the history of the world - because it's therapy, and people are being extra gentle.
We can and should ask "so, is it all going to be therapy now?"; are we, as a society, really going to reduce every female space and action to therapy for dysphoric males? Are we really never going to have any female sports ever again, it will all be just backdrop for the emotional therapy of men dealing with dysphoria? Are we really never going to allow a sorority, a public bathroom, a feminist meetup to be a safe space for women, is it all reduced to cheerleading and assisting dysphoric males?
The same people who now organize a global day of Jihad not 2 miles from the 9/11 memorial will tell you that you are a Nazi and a TERF for wanting women to be anything more than cheerleaders.