There’s a lot of people in the public saying “sex is biological and gender is cultural”, and I agree with that.
What I don’t agree with is that gender is completely separable from biology. Biology (male/female/indeterminate) is very clear and falls into two categories. [I could be convinced that there is a third, that “indeterminate” or “intersex”]. So what’s a gender?
Gender is the social presentation of sex. It’s not “how you feel about being a man or woman”, which is personality. So if gender is a social presentation of sex, it must align to the two or three categories of sex.
What it means for individuals within that specific gender is a whole different issue, however, Gender expression can vary nearly infinitely across various cultures and societies. In that sense, I agree that “gender is a spectrum”. I don’t agree that there are an infinite number of genders, based on individual feelings.
Look at any personality characteristic (aggression, empathy, nurturement, introspection, interest in people vs. interest in things, etc.). You’ll find humans of both genders all along the spectrum. But in general, males will tend towards one end of the spectrum of that characteristic relative to women, and women will tend towards the other end of the spectrum relative to men. But that doesn’t mean that there are an infinite number of genders to accommodate those differences. Sometimes you have more-than-average aggressive women, and sometimes you have more-than-average aggressive men.
For me, for example, I am less aggressive than the average male, I am more nurturing than the average male, I am more creative than the average male. Being more nurturing doesn’t mean I’m any less of a man and any more of a woman. These are just different expressions along the various spectra of what does it mean to be a man or a woman.
So, @Snikelfritz , “biological” gender doesn’t exist. In the same vein, “biological” sex doesn’t exist, because to be “biological” sex would require there to also be a non-biological sex. Sex itself is biological, so calling it “biological sex” is redundant. Thus there isn’t a biological gender, because I don’t agree there’s a “non-biological” gender. There just is sex, and there just is gender.