If I had to share one clip from John Oliver's great segment on the attacks targeting trans athletes, it would be this one.

Attacks against trans women in sports all come down to one motivator: blatant sexism and gross misogyny. Misogyny that impacts and targets every single woman on the planet, cis *and* trans.

Their one and only goal is to permanently define women as fundamentally inferior to men. For them, the mere existence of trans women is a threat to that scheme.