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.
Does Finland not have divisions, leagues, and classes in male sports? You don’t think that an all male team in the last division can compete against an all female team in the top division? You don’t think there are some sports where women are on equal footing where strength is not an advantage (archery, shooting, diving, etc.)? You don’t think there is overlap in some sports?
Most if not all of the highest divisions would be men only. The highest ranking females would be competing against some minor league men on games that nobody would be interested in even watching.
Obviously there would be some number of genetic outliars but that wouldn’t change the overall trend.