Create a trans only division. There is nothing dehumanizing about giving them their own category. Male to Female Trans people have more muscle mass and different bone structure that make them have an unfair advantage in athletic competitions when competing with girls that never went through male puberty. Also, women's hearts are about 2/3 the size of a man's heart, and biological female's have 10-12% smaller lungs on average. This translates into a much greater ability to utilize oxygen. Also, there are studies that show that muscle tissue is permanently altered by male hormones, even if they become chemically castrated at a later point, and even if they go on HRT, there are permanant changes.. And we havent even accounted for the difference in male brain structure as compared to females. Men are biologically designed, through hundreds of millions of years of evolution to be the sex that does heavier lifting and participates in more aggressive activities that require a certain structural design. Coming from a person that has deep respect for athletics as well as science, I have to say you aren't looking at the situation from a balanced, rigorous perspective. Your compassion has been hijacked with political jackfoolery. This is the same reason why steroids are banned from olympic sports, because they create an unfair advantage. Male to Female Trans people have an unfair advantage. This is fact.