I don’t think that taking female hormones and blocking male hormones causes muscle mass or bone size to decrease. It does not matter how long this guy has been messing with his hormones, he still has a size and strength advantage over women. Allowing men to compete against women is a death blow to women’s sports, which eventually will be nothing but trannies competing against each other.
I believe that men also have a larger lung capacity, which would also be an advantage in sports.