But one cannot change sex, Snappity, one can have sex reassignment surgery, which creates the facsimile of the opposite sex externally and some modicum of sexual function. One can adopt the gendered presentation of the other sex, one can change one’s name and pronouns and all these things to present as the opposite sex, but one cannot change sex.
Hence gender reassignment because gender is an external presentation which accords with societal constructions of masculine or feminine.
Hence the law as I understand it means people cannot be discriminated against for adopting feminine names, dress and attributes when having been born male.
The problem is that this is in conflict with protections afforded to women in some instances, particularly around same sex space.
But to the question of non-binary, I am confused by what this means. Intersex people should not be discriminated against, but surely this is a sex based protection. If non-binary means not conforming to masculine or feminine presentation and norms, then that would surely include people like me (single parent, working in masculine environment, does my own DIY, considering a buzz cut rather than continuing to dye my hair) except I have had three children, and been pregnant five times, so I am definitely female. And even if I had not had children, I would still be female.
So without being in any way facetious, what does non-binary actually mean?