Transsexuals, people that believe their psychological gender conflicts with their physical gender, are not a particular evolutionary paradox, because they’re far rarer than homosexual men. One in tens of thousands of men seek sex reassignment surgery – that is, pay good money to have someone slice off their willy. At that kind of prevalence, the syndrome could be explained by mutational pressure or some rare environmental insult. Maybe they’re from Transylvania.
The question is why anyone – let alone society as a whole – takes the whole idea seriously – acts as if they are in some sense really women. There are lots of differences in how the female brain develops and is wired – castration isn’t going to fix that. You’d need nanosurgery, and that probably wouldn’t be enough. More like rolling the clock back and starting over from conception.
Deirdre McCloskey isn’t a woman: wishing can’t make it so, not even wishing and flashing scalpels. Neither is Joan Roughgarden.
What they are is crazy. Darwinian madness: a behavior pattern that never works, or more exactly, never worked in past environments. You can make some sense of psychiatry if you think in terms of Darwinian illness, but of course psychiatrists haven’t done that and don’t show much interest in doing so, which is why the DSM is completely incoherent. I mean, they think homosexuality isn’t a disorder: talk about silly!