For a person to dislike who they are born as is no different than anything else of self consciousness. It just so happens they change in a different way. People spend endless amounts of money of make up, hair dye, and fashionable clothing, diets, gym memberships, and ameneties.
To hate yourself, that is a mental illness. Also, there's normally dumb (wasting your money), but then there's clinically dumb, which makes you want to mutilate yourself.