According to their own logic. If gay doesn't mean people exclusively attracted to the same sex, then there has never been any discrimination against "gay" people.
Marriages, romantic and sexual behavior were never forbidden between peniswielders & uterushavers and if these two together can be considered "gay", then nope, no discrimination.
Of course there was discrimination based on something else. What oh what could that have been/be?
Saving women's sports means ensuring that scientific / medical research on female athletes and their injuries is as comprehensive as that on male athletes: strategies/equipment/ training that is sex-specific helps women play sports effectively and lessen the chance and consequences of injury.