I don't think you've demonstrated the existence of biological gender as much as the well-known category of biological intersexuality. I have no objection to th

I don't think you've demonstrated the existence of biological gender as much as the well-known category of biological intersexuality. I have no objection to the degree that someone wants to express themselves with stereotypical masculine or feminine traits. Elevating cultural stereotypes to the level of phenotype is not supported by anything you've linked to, though. >> No one can point to it nor create a test for it. > You can ask someone, that is generally how we determine how much pain someone is in. This is true, but we don't create laws around someone's reported degree of pain. Doctors are also given then discretion to deny someone pain medication if they believe the patient is lying in order to get high (though I disagree with this on grounds of drug decriminalization).