theprestige
Penultimate Amazing
Interesting point, I'd never thought of it that way and it goes a long way to explaining why I've never been able to get an answer to the question...
If gender is just a social construct, why be trans ?
To be recognized by society the social construct not specified by your biological sex.
Biologically, there's men and women.
Around these two biological states, society has constructed male and female genders. Transsexual doesn't mean being born an man but having whatever gender you want. It means being born a man but being recognized by society as a woman.
(In most cases.)
Transsexuality is literally about reversing the binary social constructs. Take away the social construct, and there's no point in being trans.