If you have to be told what precedent is being set, then you are being intentionally obtuse.
If you feel it is okay for a high school boy, to claim he is a female, purely by declaration, and go in and compete against biological women and beat them, there is no discussion to have with you.
I question if you have ever played sports? Clearly you haven't based on your loose portrayal of previously discussed sports. You probably also have never had a child compete in sports either to understand the biological difference and the advantage that post puberty male can have over a female.
It's okay for you to have your opinion, but your opinion is based on illogical and politically biased pitfalls that completely wants to ignore what women have fought for in this country