Quote Originally Posted by xerxe View Post
But the principle is the same whether its a car or a human being: we already accept that some things can change their fundamental character because of a few exterior modifications. The fact that we choose not to apply this principle to gender is a choice, not because of some natural law.
No. The principle is not the same at all. If you want to use cars as an example, how about putting a body kit and fake badges on a car -- doesn't change the motor inside it. Looks like something else, but isn't. You can't take that car with the fake badges on it out to the track and expect it to perform like the car it's trying to copy. It looks like it, but it's not it.