The reason we have women’s sports is because women are extremely rarely able to compete against men in most sports.
When MTF trans person reaches adulthood they have already generally attained a physical advantage over cis women that no amount of hormones and surgery will diminish. Their current levels of testosterone will have no impact on bone structure and muscle development gained through puberty. This can be shown by the lack of female to male trans athletes.
I am all for Trans rights, but becoming a professional or elite athlete is not a right, as much as I would love to become a racing driver.
Perhaps a mixed gender/sex competition could work, but allowing people that have transitioned after puberty took hold is blatantly unfair. Obviously there are some sports, such as shooting, darts, snooker etc where this advantage isn’t really applicable.
Unfortunately in life compromises sometimes have to be made, and I believe that for males transitioning to female, not allowing them to compete as elite female athletes is a compromise that needs to be made for the greater good.