The men’s category in sports should be converted to an “open” category, where men or women or trans people can compete as they wish. Trans people should be allowed to live their lives as they see fit. It is not transphobic to ask that someone with the advantage of a lifetime of testosterone and other male differences be required to compete in the open category.
It makes no sense to allow someone with an advantage to compete with those who don’t have it… We don’t let the young compete in old people categories, nor do we allow drugged people to compete with natural athletes, nor do we allow normal people to compete in the Paralympics.