DOI: No idea of correct terminology half the time, never studied gender theory etc etc.
But have a lifetime of lived experience of being female AND a woman (wouldn't have thought it necessary to suggest that those two might be separate but there you go).
How do I know I'm a woman? Well, I went through female puberty, I bled every month, I gave birth, I breastfed, I developed a female-only cancer. It's fair to assume that my genotype is XX. I look like a woman - I have a woman's body - even if I shaved off my hair and had bilateral mastectomies, you would know by looking at me that I'm a woman.
I've also been backed up in this supposition by the fact that I've been subjected, over the years, to all the types of social, verbal and physical assaults that are so often aimed at women in our society (especially bolshy women, who, as an interesting twist in all this, would be accused of not behaving in a suitably feminine manner --- HOW VERY DARE WE?!!)
But how do I "know" I'm a woman? Do I "feel like a woman"? Well, I only know what it feels like to be ME. I could never say that I feel as though I'm not a woman, because I don't know what not-women (shall I call them "men"?) feel like.
So how could anyone else "know" that they "feel like a woman"?
If thinking, intelligent, educated Adult Human Females can't explain what it "feels like to be a woman" then why the hell are we supposed to accept that people who have never had the lived experiences that we have all had, do know? And not only know, but expect us to kowtow to their beliefs?
To go back to p1 of this thread, they might as well say that they feel like a penguin, or a tree. It would make just as much sense.