no one worries about it. this "physical fairness" ideal is utterly imaginary. sports are inherently unfair. no one starts from an equal standing in sports. clearly height is an advantage in basletball. do you think basketball needs height classes? Messi is celebrated around the world as the best player in football, maybe one of the best athletes ever. should he be banned from football for having taken growth hormones from age 11? do you think phelps has regular lungs?
sports are not fair, and they never have been, and it seems like i can't stress this enough, NO ONE CARES.
this is just a convenient bullshit ideal people only apply when trans people are involved. because it's easier to sell that to normies than just saying they should be removed from public life altogether. but this is an entry point. they tried this with marriage when it was about gay people.
