Transexuals

[I_am_not_mafia]

People who identify with a different species (if there are any, I doubt there are) do not have matching brain scans.

There is also no discernible difference in brain scans between different races, such as there is between male and female.

Transsexuals have the same type of brains as the gender that they identify with.

Yes, there are such people, though it is very rare. They are called "otherkin." 

Ok, I can see what you're saying about the brain scan and it makes sense, and it does further set them apart from the examples I mentioned above. However, couldn't it still be considered some form of disorder for the brain to be one sex and the rest of the body to be a different sex? Isn't that the crux of the word "disorder," in its most basic form, that something is not "ordered" properly?

Yes but does it matter? So it's a disorder. A disorder of what? The brain or the body? The transsexual has a perfectly functioning body, and a perfectly functioning brain. It's a disorder of the matching between the two. Surely that's what transsexuals have been arguing all along. Just using the term disorder in a way that suggests that it is a mental disorder is equivocation.

You can either try to change the brain or you can try to change the body. The medical profession tried to change the former and it did not work and long hard experience and many ruined lives later on has shown that the only effective treatment is to change the body.