Locker rooms are the new bathrooms. Officials in Maryland are in court to keep 16-year-old Max Alexander Brennan out of the boys’ locker room. According to the Washington Post, school administrators “have said they must look out for all students, who have a right to ‘bodily privacy’ and should not be forced to undress in front of the opposite biological sex.”

Of course, the idea of “biological sex” is nonsense, and in more than only way. How will these officials define biological sex–as the sex assigned at birth, as a post or “partially” transitioned body, or as gender identity? It’s gender identity that’s the criterion for M/F classification on drivers’ licenses in 32 states, and for US passports. In fact, as I argue in my book, there’s no there there when it comes to deciding who is F and who is M. In the past, what sex is depended…