When biologists claim that sex is binary, we mean something straightforward: There are only two sexes. This is true throughout the plant and animal kingdoms. An organism’s sex is defined by the type of gamete (sperm or ova) it has the function of producing. Males have the function of producing sperm, or small gametes; females, ova, or large ones. Because there is no third gamete type, there are only two sexes. Sex is binary.
Intersex people, whose genitalia appear ambiguous or mixed, don’t undermine the sex binary. Many gender ideologues, however, falsely claim the existence of intersex conditions renders the categories “male” and “female” arbitrary and meaningless. In “Hermaphrodites and the Medical Invention of Sex” (1998), the historian of science Alice Dreger writes: “Hermaphroditism causes a great deal of confusion, more than one might at first appreciate, because—as we will see again and again—the discovery of a ‘hermaphroditic’ body raises doubts not just about the particular body in question, but about all bodies. The questioned body forces us to ask what exactly it is—if anything—that makes the rest of us unquestionable.”
In reality, the existence of borderline cases no more raises questions about everyone else’s sex than the existence of dawn and dusk casts doubt on day and night. For the vast majority of people, their sex is obvious. And our society isn’t experiencing a sudden dramatic surge in people born with ambiguous genitalia. We are experiencing a surge in people who are unambiguously one sex claiming to “identify” as the opposite sex or as something other than male or female.
[And it’s because of a modern fad of “identity,” a way to deny reality and claim our own ability to reorder nature by whim. — Ed]
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