The NCAA and the International Olympic Committees medical bodies disagree with your opinion and have stated unequivocally that a trans person undergoing Hormone Replacement Therapy possesses no advantage over other athletes provided their blood serum levels stay within legal limits just like every other athlete. Heres a link to a page that lists dozens of athletic governing bodies medical policies on trans athletes made up of actual doctors that all say the same.
http://www.transathlete.com/#!policies-by-organization/c1vyj