Everyone linking that thread from Rebecca somebody on how sex is sooooo complicated is missing the point feminism makes completely. Women were oppressed long before chromosomes could be seen, before we had current technology to map many intersex variations. Men knew who to rape, who child brides were and are, who to deny education to, who to deny property rights, the right to vote, right to have bank accounts ect ect ect. Sex was not complicated enough to blur the line of who experiences sexism.