Is it gender, or is it sex, that matters? This is exactly the point, that it is sex that matters, and specific ruling for intersex conditions also matters.
eh, the article didn't seem to clearly define the differences and I find it boring. People should do whatever they want with their lives and their own genitals. Just don't cheat at sport or pretend that Laurel Hubbard -- who was a modestly good lifter as a man (like... good for a hobby level?) but went to the olympics as an (old for the sport) woman had any business in the olympics. And that Laurel didn't steal a spot from an actual woman who deserved to be there.