You don't understand what cheating is. When trans players are allowed to play in a league, they are doing so in accordance with the express rules of the governing body. That is not cheating. You are just making up nonsense excuses to rationalize how much you hate trans people without having to admit it.
What I find interesting about transphobes like yourself is that you almost always proclaim that you're "pro business" and "government hands off", yet here you are trying to tell people that private entities shouldn't be allowed to decide who can participate in their own leagues that they created and oversee. Am I right that you claim to be a "pro business" "conservative"? Do you think that the government should be "hands off" - except apparently when it involves the sanctity of children's sports which is just so important that the world will end if a trans girl wins a HS race in Connecticut?
I am going to make something very clear for you. Winning and losing youth sports is not important, especially compared to civil rights and inclusivity, which people like you keep proving time and again. At the college and professional levels, sports become more important, which explains why there are increasingly restrictive rules than at the youth level. Sometimes it turns out that even those rules don't work well, as the Penn swimmer situation seemed to bring to light, so they revise those rules to make them more "fair" in a way that addresses everyone's interests - not just the transphobic dads' who are irrationally scared shitless that their child might lose a race or maybe even a scholarship to a transphobic boy who is abusing the process by pretending to be trans.