I never said that any group shouldn't be able to compete period, I'm saying that trans women should not be allowed to compete in female track competitions. Your argument that it's not currently widespread dominance is irrelevant to my point.Again...you are then denying the identity of an entire group of people on the basis of possibly/probably having an inherent natural advantage over other people of their same gender. Even if you don't realize it, you're saying transwomen are not really women. That's what it comes down to
I get the counter argument that if trans women start dominating sports that might negatively impact the engagement of cis women with sports. Are we at that point already? And if we are, what's more important here? The vast majority of people who play sports don't turn pro, and even among those who do, it's always a very small select few who reach the top. It's not like there isn't already a natural selection largely based on genetics, geography(place of birth is unfortunately very important still, due to uneven resources/funding), etc
If you think that they shouldn't have their own category, or they shouldn't be forced to compete with cis men, then fine. Advocate for free for all sexes in track. Where no matter what you were born as or what you identify with, all compete in the same 100 meter race. As that's literally the only way you can do this. Just be done with sex class in track sport.