Leslie Feinberg said this quote
“ I have heard an argument that transgender people oppress transsexual people because we are trying to tear down the categories of male and female. But isn't this the same reactionary argument used against transmen and transwomen by those who argue that any challenges to assigned birth sex threaten the categories of man and woman? Transgender people are not dismantling the categories of man and woman. We are opening up a world of possibilities in addition. Each of us has a right to our identities. To claim one group of downtrodden people is oppressing another by their self-identification is to swing your guns away from those who really do oppress us, and to aim them at those who are already under siege. ”