i have yet to see any convincing reason for keeping the concepts of sex and gender, even scientifically it’s not useful as you can just actually specify the properties you’re basing it on instead and thus be more accurate.

like, not all “women” have a womb, or breasts, or the same levels of estrogen, etc etc… So if you use the term “woman” or “female” you’re inevitably going to be inaccurate, whereas if you instead say “people with XX chromosomes, a functional womb, and breasts” you’re now actually precisely explaining what group of people you’re talking about.