If women athletes would grow a backbone and just not enter or participate in events with trannys, the controlling sponsors would change their directives fast.
Yes, this is true - but you are asking for extraordinary bravery, which should not be expected of average people. All collegiate athletes have trained (and spent huge amounts of time and parents' money) to get to these high-level competitions.
The natural tendency then is, having invested so much, is to "go along to get along" and hope for improvement later
Government did the EXACT same thing with vax mandates. One could say "grow a backbone and not participate" - but tell that to the nursing director, who spent 4-6 years in school and 10 years building their career, who was then forced to get a vax, simply to keep her/his job.
We must keep the focus 100% on the EVIL perpetrated by the faceless bureaucrats.