Methinks you should have taken some biology at college instead of "gender studies". Or learn how to use Wikipedia; for example, see the article on oogenesis:
https://en.wikipedia.org/wiki/Oogenesis#Maturation_into_ovum
But of particular note:
Girls are born with 1-2 million of those "primary oocytes", but only some 500 mature into actual ova that can actually be used in reproduction. A woman only PRODUCES (present tense indefinite) some 500 ova from puberty to menopause.
Baby and prepubescent girls can not yet make available for reproduction mature ova so don't qualify as females - they can not do so until the onset of puberty. And "menopausees" no longer have the ability to turn those "ootids" into mature ova that can be used in reproduction so they no longer qualify as females either.
But relative to "gender studies", I wonder if you ever read
Professing Feminism by Noretta Koertge and Daphne Patai. Can't say that I have myself - on the list - but a decent and illuminating, if damning review here:
https://www.feministcritics.org/blog/2009/07/27/professing-feminism-noh/
A salient quote:
Great deal of ideological bias and outright rot through much of feminism which bears some responsibility for the whole transgender ***********.
Nobody, no human, changes their sex. Unless you want to stand on one's "sex" as polite euphemisms for one's genitalia:
https://www.lexico.com/definition/sex
But not particularly "abhorrent" to me - just won't be any party to an egregious, and seriously problematic lie, particularly when it leads to the butchery of autistic and defenseless children:
https://www.solzhenitsyncenter.org/live-not-by-lies
At least any sort of a claim that is manifestly inconsistent with, and contradicted by standard biological definitions by which to have a sex, to be male or female is to have functioning gonads of either of two types.
LoL - as the kids on Tik-Tok say ...
https://www.vanityfair.com/hollywood/2015/06/caitlyn-jenner-bruce-cover-annie-leibovitz