Except "woman" doesn't mean "female person" anymore, it means "anyone who identifies as a woman" because attaching any common noun at all for people based on sex rather than gender would be accused of transphobia.
It's kind of like if someone asked what the term for the sexual orientation of someone who is interested in partners they could hypothetically reproduce with is, the answer is there isn't one and suggesting there should be will get called transphobic.
What is the difference between "people with vaginas" and "people with vaginas of the feminine species"? And what is the "feminine species"? Is it some (unspecified?) species where every specimen is of the feminine gender?
or for a potential fun comment thread: is dude gendered? I grew up in a place where a lot of people called everyone dude regardless of gender. That said, when I’ve brought this up, some people get real heated about it.
Do women wanna be called "women" tho? I don't mean this rhetorically, but as a genuine question.
I for example, would hate to be called a "man". It just makes me sound old. I would prefer being referred to as "male", or anything that isn't the word "man". This is applicable to a lot of my friends too. Don't women feel the same way?
If you call people with vaginas women, you now cross the line for trans folks.
No matter how you phrase it, there will always be someone you will offend. In the case of the word "female" this is driven purely by some folks finding ways to use it offensively, despite it being just as neutral as "women"
Don't assume malicious intent every time someone uses the word "female" - most likely, they have never put any negative connotations to it and possibly never even heard of this word being used in a negative context.