• Carnelian@lemmy.world
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    24 hours ago

    Nobody is born with a body organized around producing a third gamete size

    You say that because you incorrectly categorize genetic variations as a failed attempt at one of two binary options. It’s circular reasoning. You’re looking for a binary to sort things into, so regardless of the underlying truth, you sort everything into it.

    Like all smoking gun “binary” sex characteristics transphobes have honed in on over the years, we’re only talking about it because they arrived there from working backwards towards it. Just a few years ago all of these same talking points were “biological truth” regarding chromosomes (which you now openly concede are not reliable sex determinants)

    A thorough investigation of gametes reveals that like everything else in biology that’s paired off, it’s bipolar in nature rather than binary (strongly gathered up into two categories but with outliers and exceptions).

    Even ignoring gamete manifestation in all other species, which there is no reason to do other than to try and make a transphobic point, just among humans genetic variation occurs somewhat regularly. This is the basic principle that makes evolution possible, and it’s why other species have such insane gamete setups such that that gamete size cannot be used universally to determine sex.

    Ah but I forget we’re still just talking humans. Evolutionary scientists reveal that the simple reason intermediate gamete sizes do not proliferate in our species is because they have historically been outcompeted. This fact could not be true if there were no bodies born with a third gamete type

    An additional issue with this whole train of thought is the baseless presumption that normal biological variation precludes someone who was “supposed to be female” from producing the small gamete. It’s literally the meme we’re looking at in the OP: where the vast majority fits neatly into two categories, but if you were to try to work backwards from there and say everything must fit into those categories, you will have deprived yourself of even the most fundamental biological truths that describe our universe, and on a personal note, you will have deprived yourself of what makes biology beautiful.