You're switching the goalpost again.
If you accept an "extreme minority" (which is not the case, intersex people make up around the same amount of the population in America as Jewish Americans) can have this, then you accept that having XY/XX chromosomes does not determine one's gender. In which case, my point is proven.
Because you aren't denying their existence or spouting nonsense about them.
You're the one going on about penises, you pervert. I don't care what genitalia a person has.