Because no one in their right mind that played sports in their life would think this is ok, since they'd know the monumental difference between a man and a woman. This isn't some advantage, she was born a man. With all the overwhelming physical advantages that men generally have over women and would curb-stomp these women because she was born a man rather than you know.. those other specific advantages that people get born with.
You can be what you want to be, I don't give a fuck. But she is still physically speaking a man regardless of what they want to be. If there wasn't some monumental difference physically between men and women, sports would include both genders to play with each other. However, no one wants to watch men completely destroy women, which is what would happen here regardless of whether someone feels they are a woman or a man.
Do people forget that a complete fucking scrub that smoked, drank and then dominated the fuck out of the Williams sisters in tennis in late 90s? He was ranked 203rd and fucking bodied them 6-1 and 6-2. Now imagine if Karsten Braasch the scrub that went even further down the list falling to 300s shortly after, was a transgender woman. We would have seen a physically born man playing and dominating the fuck out of the best tennis players of this century until she retired bored from owning everyone. All these moral social heroes on this topic would be for it and not watch the actual sport, and the tennis fans would rightfully tap out completely killing the female tennis sport for the next decade. There would be no Serena Williams, Venus Williams, Justine Henin, Seles etc because they'd all be women that got fucking dominated by the Braasch. All would be footnotes in tennis history. From the specific advantage of being born a man and playing against the sex that is far weaker in comparison. This is what some of you are trying to make it seem similar to all the genetic advantages, and it's somehow not a parody.
I'm not attacking anybody. I'm just calling it out how it is. People that played sports wouldn't write this nonsense about equality since they know it's the complete opposite of it in reality. It just looks like a bunch of people that are ignorant on the subject that are tripping over themselves trying to sound like fair and balanced citizens looking for imaginary social points.