No more men’s and women’s league, no more “gender eligibility” requirements, a common dresscode, same standards and rules for all.
Edit: since it looks like people missing the word let: the suggestion isn’t to force desegregation. It’s to allow it or even make it the default. Someone else made a good suggestion: segregate by attributes specific to the sport. In boxing it’s weight class, in basketball it could be height, in biking it could even be doped and non doped. Sex and gender need not be the very first thing to segregate by.
Depends on how it’s organized. In a open team, it would definitely suck. In one of my sports, Ultimate, coed divisions or leagues are pretty popular. Generally the gender ratio is 4-3 with the offensive team deciding to play 3 or 4 women for that point.