Due to the recent changes in federal regulations about gender equity in education in the USA, some policy makers have resurrected single-sex public education. Because single-sex schooling ignores the complexity of sex, gender, and sexuality, it sets up a "separate but equal" system that is anything but. Discounting the ways in which gender is negotiated, constructed, and performed, and the variability of anatomical sex, current arguments for single-sex schooling reify the false binaries of sex and gender, rely on assumptions of heteronormativity and, in turn, negate the existence of multiple sexes, genders, and sexual orientations.