The women most harmed are a highly marginalised subgroup: lesbians. Without a meaningful definition of sex, there can be no meaningful definition of sexual orientation. And so, according to activists, the words gay, straight and so on now refer to attractions towards gender identities, not sexes. The Canadian transwoman Veronica Ivy has said that the only morally acceptable orientation is pansexual (capable of attraction to people of any sex or gender identity), and that having a ‘genital preference’ (that is, being attracted only to people of one sex or the other) is transphobic.
