evidence: Female athletes compete at every level, including the Olympic and professional levels. Women even compete in professional boxing and mixed martial arts. But they, as do the males, compete against each other — not against the opposite sex, except at the very earliest ages. [...] In March a University of Pennsylvania swimmer who prefers to be called Lia Thomas won a NCAA swimming contest and was hailed as the first transgender athlete to win a Division I championship in any sport. Thomas, by the way, swam for the men’s team at Penn for three years before taking the trophies away from the female athletes. This has to stop. It makes a mockery of Title IX. It is insulting and demeaning for the women who watch their sports being dominated by increasing numbers of biological males. If high schools, colleges, and the Olympic committee wish to introduce a new "transgender division," it couldn’t be any more bizarre that what is happening already and it would be preferable than seeing women’s sports destroyed.