Here’s my two cents. It’s hard for people to keep up with the euphemism treadmill. There was a time when the word “female” didn’t have the negative connotation that it does now mostly thanks to co-opting by incels. It should also be stated that the word “male” doesn’t have the same negative connotations and it’s similar to how there’s slurs for black people but none for white people.
So why do people find “female” offensive? Well for starters it’s dehumanizing. Women is a less academic term and female implies some biological essentialism. I think the crux as to why it’s a big deal now is that women do not refer to themselves as females in the manner that men do. Men do not think of themselves as males, they do not call other men males, men call themselves men. male and female are simply outdated terms.
I suspect one day as society moves towards a more genderqueer position men and women will become unacceptable to say too. Idk. Like I think we need to acknowledge that there is such thing as a euphemism treadmill, that languages change, words become offensive or nonoffensive over time, and like all we can do in order to be a fucking decent human bean is to conform to society’s standards as to what is acceptable as according to the treadmill. Unless it’s some shit like calling the homeless, the unhoused. Then in those specific instances we got to run against the treadmill. But in this specific instance, we need to run with the treadmill on this one. Nothing feels better than conforming with society.
I'm not big on hard grammar rules so in the contexts that I see it used in "woman" does add extra meanings like, adulthood and agency while "female" might not.
There was a post a week or two ago about "men having sex with females" which kinda made my ears prick up. Because female can include the concepts of babies and corpses when woman seems to rarely be used to include those things.
So it feels easier for me understand using the term woman when referring to a group of that should naturally exclude members who would be included when using the term female.