I am not an athlete, but since the rise of self-ID I have been sexually harassed and grabbed in female bathrooms 3 separate times by 3 separate men identifying as trans women.  Before self ID, actual trans women used female facilities with no issue, because they passed as females and were dedicated to living as such.

Additionally, current science maintains that grown males do not lose their physical advantage over females post hormone treatment. Their lungs, hearts, hand, feet, leg length, and hips and joints remain the same. They are also still capable of retaining more muscle mass than the average female. 

Please take this important first step to eliminating self-ID and returning protected spaces to females.