Gamabattes original question has wandered off into the usual arguments about what is normal or abnormal. Perhaps we should substitute orthodox or unorthodox....less inflammatory?
But are we any closer to an understanding of fairness in competition? Your genetic makeup clearly has an impact on your ability. Our orthodox division for "fair" competition is to separate humans with genetic XX character from XY and then let other characteristics such as height, weight, flexibility etc be self defining (e.g. no small person would take up Basketball and hope to do well).
If you don't immediately fit either XX or XY due to inherent birth genetic makeup, how do you get categorised for fair competition?