Comment by FarmerPotato

I have taught sex ed over the past ten years. The curriculum (which we are forbidden to alter) embraces ideas of many dimensions to sex, but I found that there is not one empirical scientist in their list of authors, reviewers, or source material. The definition of “evidence-based” is that a lesson. has been tested in a classroom. (In other words, kids learned it.)

Intersex is a concept that bears looking into. We’re taught that it is as much as 0.4% of population, which is arrived at through removing context multiple times. Nowadays it is used to argue that there is a spectrum, not a sex binary, but this was not its meaning empirically. (Same thing with “sex assigned at birth”). You’re getting down to some very rare “differences of sexual development” (example: Y chromosome not getting expressed) whereas intersex individuals empirically belong to one or the other genotype. And the majority do not identify as “non binary” and don’t want to be used as examples.

I’m sure I’ll be debated, one comment can’t carry all the proof, but read some sports medicine papers on sex differences, that area has the facts.