You are divisive by distinguishing trans people into those who transitioned before and after puberty!There is no reason a MtF who had an estrogenic puberty shluld not be allowed to compete as they would have nine of the advantages of those who had an androgenic puberty.
No, seriously, the topic is complex and a very fine grained solution is necessary and the different sports organizations are working on it. No need for the government to interfere.
I've learned about the details when I followed the controversy around the video Stephen Woodford (Rationality Rules) made. At the moment there isn't even a scientific consensus about the finer details. The rules may change according to newer insights. That is much too fast for the legislative to handle.