Detransitioners prove that "gender ideology" is correct
The great Irony of gender critical discourse is that detransitioners themselves prove an extremely strong argument for an internal, sexed body schema.
Take FTMTF detransitioners as an example They constantly describe their deep repulsion to the aesthetic effects of Testosterone, the deep voice, thick hair, masuline facial structure and the general switch towards male dimorphism as something that they hated. And how they regret and abhor masculinizing their bodies and losing their feminine features.
Note that a significant part of their complaints are not about functional losses or health effects but about change to their bodies phenotype and how wrong it makes them feel.
But this is precisely what the gender-critical model struggles to explain. If we do not have a sense of the sexed schema of the body we ought to inhabit then why is this such a nigh universal complait among detrans ppl.
The obvious implication is that people possess an internal representation of their own bodies, including their sexed characteristics, which can come into conflict with their actual physical development. And if this representation can lead a female-born person to experience testosterone-induced masculinisation as intolerable, there is no principled reason why a male-born person could not possess the same kind of representation, with the opposite relationship to their natal sex.
You cannot inisist that sexed body phenotype is completely irrelevant to a humans self perception except insofar society and societal pressure teaches us to care for them while at the same type time treating aesthetic changes as a huge violation.