I have a question for kind of the whole thread in general, regarding the gametes discussion. Isn't it the case that a human is born with all the eggs they'll ever have? So like if you aren't born with any, you'll never make any later? And if so, isn't the only way to produce eggs to become pregnant with a child and make their eggs for them?
e: I'm getting the impression that this comment is interpreted as a transphobic argument. To be clear, I don't think sex is binary, and that even if it were, it would have no bearing on gender.
I've added a link to the discussion which inspired the question.
Update: It's possible for an intersex person to have both eggs and sperm, so I think that definition of sex as a binary collapses on itself, right?
https://en.wikipedia.org/wiki/Ovotesticular_syndrome (I'm not sure I agree with characterizing any kind of intersex as disordered, but I also don't know enough about it to make a strong argument and also I didn't write the page.)