What about XXX? XYY? What about conditions like 46, XX and 46, XY? What about people born with just the X chromosome, no X or Y to go with it?
Did you know it's possible to have BOTH the XY AND the XX chromosome pairs?
YES, IT F**KING WELL *IS* THAT COMPLICATED AND ONLY SOMEONE WHO DOESN'T KNOW WHAT THEY'RE TALKING ABOUT WOULD *EVER* SAY THAT IT ISN'T!!!!!!