steepholm

As regards cis in particular, I think there's been quite a successful attempt by TERFs to convince people it means 'someone who accepts regressive gender stereotypes', part of the wider strategy of insisting that 'gender' itself is just stereotypes, and 'sex' is reality. The TERFs are doing it disingenuously, but I think for a fair few basically well-meaning, liberal-ish but under-informed people that's been the first definition of cis that they're heard. It doesn't help that such people tend to regard all but the most egregious gender stereotypes as virtually laws of nature, and therefore manifestations of 'sex'.