A less succinct way of phrasing it would be something like: which gametes are produced, were produced, or should have been produced.
There are messy edge cases. Not all people have 8 fingers and two thumbs, but we don't say digit count is on a spectrum because some people are born with more or less, or that some people have had digits amputated.
The vast, vast majority of people are not messy edge cases. And some of them find language like "pregnant people" or "people with protates" awkward and vaguely dehumanising as opposed to the more understandable and specific terms: "women" and "men".
There are messy edge cases. Not all people have 8 fingers and two thumbs, but we don't say digit count is on a spectrum because some people are born with more or less, or that some people have had digits amputated.
The vast, vast majority of people are not messy edge cases. And some of them find language like "pregnant people" or "people with protates" awkward and vaguely dehumanising as opposed to the more understandable and specific terms: "women" and "men".