Trans athletes make great gains, yet resentment still flares

as long as we have binary classification for gender (which admittedly is generally effective 99% of the time) then we will struggle with the 1% occasions

but let's not let our 'comfort' with male/female divisions distract us from the fact that we adjust to 'unfair athletic advantage' all of the time
boxing, wrestling, judo, karate, etc etc have longer segregated along weight classifications for obvious reasons
kids sports do it along age divisions for obvious reasons - and even make adjustments when say a 9yr old dominates his age division, we move him to the next one up

and sports are nothing but unfair advantages - Shaq has an unfair athletic advantage over me as do Usain Bolt and Michael Phelps (and maybe a few others)
yes competition should be competitive, but we should be dynamic and nimble adjusting to change and not regressive and inert