The Senate has rejected legislation aiming to bar transgender women and girls from participating in school athletic competitions designated for female athletes.
Summary
A Senate bill to ban transgender women and girls from female sports teams failed to advance in a test vote, falling short of the 60 votes needed in a 51-45 party-line tally.
The bill sought to define Title IX protections based on reproductive biology at birth. Republicans argued it ensured fairness in women’s sports, while Democrats called it unnecessary and divisive.
Trump previously signed an executive order aligning federal policy with this view, and the NCAA changed its rules accordingly.
LGBTQ+ advocates condemned the bill as exclusionary.
Honest answer: because trans women might have an unfair advantage due to biology/testosterone levels. Otherwise the homophobia would include trans men. Don't get me wrong--it's still ultimately down to transphobia, but they have an easier excuse for it with trans women.
its interesting though that seemingly the entire antitrans community only concentrates on MtF. Thinking back, i dont think ive ever heard an argument against FtM specifically from them.