Well maybe some of you think it is, the rest of us get classed as eunuchs so I'll leave you women to it.
Classed as eunuchs by whom?
I'm a woman.
I have never had children, I don't have periods, and never breast fed.
I am a woman however as I am an adult human of the sex class female: the sex category which has the potential to gestate young irrespective of whether I actually can or have done that.
Any oppression I face as a woman is because of this perceived not actual potential.
How else am I woman?
Am I woman because I feel womanly? What does that mean?
Can you think of a definition of woman that includes all women and isn't sex based?
Surely it's far more reductive to say a woman is a woman because she subscribes to the gender role imposed on her by society.
I'm sorry to hear your friend was in emotional pain due to her hysterectomy, but this was down to the value that society puts on women's reproductive potential. Creating a description category is simply that a description, not a judgement.
Anybody who would say that if you don't have a womb then you can't be a woman isn't very bright and that is NOT gender critical feminist position at all.