We had to wait for the idea of social construtivism before the West could make sense of non-binary gender ideas. There are many cultures where third genders and gender nonconformity has been common for centuries. Who knows what they would've called it
>>11685109I don't think you understand transgenderism very well. Some gender nonconforming people do still want to fit into a gender binary, but their desired gender identity is opposite from their sex. Your example of 'cutting off balls' is one example of this. There still remains other gender identities outside of the binary however, like being genderqueer where your identity is largely independent of balls or no balls. A male genderqueer person doesn't need to cut balls off to feel true to their gender identity, to them that discrete element has nothing to do with their gender.
The point of the gender spectrum is to capture all the various gender identities people have, which includes a gender binary as well as the other genders that exist around the world. By being applicable to all human societies a gender spectrum is meant to be unbiased by any one culture, and so capture something more fundamentally human.
