People’s bodies are still organized around the production of either sperm or ova, even if they’re unable to reproduce due to a developmental issue. You can call that a third category if it’s useful to you, but that doesn’t form a third sex as understood by biologists.
So those who cannot reproduce and aren’t in either category are still human. And therefore in a third category.
Red, blue, none. Three categories.
Also, intersex can sometimes reproduce.
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People’s bodies are still organized around the production of either sperm or ova, even if they’re unable to reproduce due to a developmental issue. You can call that a third category if it’s useful to you, but that doesn’t form a third sex as understood by biologists.
Intersex is a confusing term, and doesn’t dispute the binary. People are still male or female, with https://en.wikipedia.org/wiki/Disorders_of_sex_development