But what if it isn’t one, but the entire team of cis women (girls) who can no longer play? At the high school level, there is no requirement for testosterone. If the players identify as female, they can play.
Even Caitlyn Jenner says it would have been unfair to have competed as a woman even though that is how she identified (although not openly at the time Bruce was in the olympics). Venus Williams, the best woman tennis player in the world said she could beat anyone ranked higher than 100 on the men’s rankings, and when she tried, she couldn’t beat (didn’t even come close) to beating the guy ranked #201. Could she beat most 40 year old men? Sure. Could she beat any D1 college man? I don’t know.
If it is okay to exclude one cis woman because she’s not better than the trans woman, why is it not okay to exclude just one trans woman? Still just one college woman being excluded.