Sports use to be only acceptable for boys - girls use to be discouraged and negated for wanting to participate in any of it. Why you want to reverse any sort of social acceptance and that move forward in society is beyond me but that's what will happen.
I support balanced requirements in the military because it's a heavy duty career that relies on strengths and equality - not imbalance.
But when it comes to sports I don't agree - there are physical differences and sometimes that means they have the advantage - this is one such situation.
Anyway - this is old, I'm just restating everything I've said on it - my view still stands.