Good grief, mate, you come off as unhinged. How is what I said "deny[ing] transness exists"?
Yes, I believe that in order to provide everyone with fairness, safety, dignity, comfort, wellbeing, respect and equal opportunity to participate and have a chance of reaching their full potential, it's sometimes not only legitimate but actually advisable and necessary to segregate by sex.
How this is is hateful and belittling is beyond me.
If males like Maddie and Soren cannot tolerate being in with others of their sex, then it makes sense to consider creating additional categories, facilities and programs for them. I have no problem with that. In fact, I think additional options are a good idea.
What I oppose - and what's not going to fly with the general public - is the demand that all unhappy, confused males who like dresses and "girly stuff" like Maddie - or who develop autogynephilia in adolescence like quite a few teenage boys do, especially in today's era of internet porn - be shoehorned into female sports and spaces. This male supremacist forced teaming is to the disadvantage, detriment and danger of those of us who actually are girls and women, and it's being imposed on us from on high without our consent. Indeed, the people who came up with these policies and practices, and decided to put them in place, never even bothered to consult with and ask us in the first place.
If you really cared about youngsters like Maddie and Soren, you'd see that the extreme demands they, you and other gender identity activists are making of girls and women (the female kind) and of society in general is going to backfire. The sad fact is, expecting everyone to deny reality and the female population to cede our hard-won rights is going to result in less acceptance for trans-identified people, particularly the male ones. Moreover, it's already having negative fallout on the rest of the so-called "LGBTQ+" and those of us who are "gender nonconforming."
Also: following your reasoning to its logical conclusion, it's wrong to segregate in sports or other areas of life on any grounds. Athletes and students of both sexes, all ages, all abilities should participate and compete in sports together, use the same locker rooms, sleep in the same rooms on overnight trips. Academcially, instead of segregating by age/grades, subject matter, proficiency, learning potential, etc, schools should go back to having one-room classrooms where everyone is smushed together.
Good luck with that.