I used to play a sport which has mixed-sex teams of 7, the rules including that you could only have 4 of either sex to keep it balanced (if that makes sense).
Recently it seems half the people in the team are coming out as trans/non-binary/just about anything (including the transwoman who turns up at training in short-shorts and fishnets and gets lauded for it when you know a women would get slut shamed).
And now this: