https://xcancel.com/HelenWebberley/status/2091279458929922438

She’s so so so wrong.

Being female means having the brain of a woman.

Biological sex is defined by gamete production or reproductive anatomy organized to produce ova (females) versus sperm (males), not brain structure. Human brain sex differences are small, overlapping and do not define biological sex categories.

https://open.lib.umn.edu/evosex/chapter/8-4-sex-its-about-the-gametes/

https://www.u-tokyo.ac.jp/focus/en/features/z0405_00017.html

https://pmc.ncbi.nlm.nih.gov/articles/PMC10854110/

https://xcancel.com/jk_rowling/status/2091228093272760551

Female means possessing the reproductive system that produces eggs instead of sperm. It is irrelevant whether said system is defective, immature or surgically altered.

I just described every female on earth.