I think the pp's point is that we aren't clownfish, though? Some species have different reproductive arrangements, but we aren't a different species.
The stupid thing about this is that nobody thinks gay people can produce a baby without bringing in assistance from someone of the opposite sex. Nobody gazes around them and wonders who they need to hook up with, in order to become impregnated, worrying which of the 100 genders will have what it takes. Everyone knows it takes one man and one woman. That's all sex classes are - reproductive classes. Even in terms of gender identity, attacking sex is meaningless because their argument rests on innate gender ID! Then again, perhaps those pointing out that there's no evidence at all for that has moved them on to attacking sex. Either way: it has fuck all to do with Newtonian physics, and as he says himself, sometimes the results are aberrant in said Newtonian Physics, whereas nobody has ever had a baby without the two sexes combining gametes. Yes, some people have disorders, some people are less fertile. That is an exception proving the rule. Babies are made from a binary reproductive system in humans. That's just how it is. This is as batshit as homeopathy or vaccine denialism.
I'm so tired of this fatuous stupidity. I heard arguments like this at university, but nobody platformed them on Channel flipping Four.
Then again, the more we see things like this, the better off we are. People need to know what the hell is actually happening, and what is at stake for women.