society is moving away from the binary to fluidity and sport needs to keep up with the times.
No, a very tiny, exceptionally noisy and aggressive and well funded political faction are aggressively trying to move society away from binary.
It's not supported by the general public, who are not going along with them and won't. Most people's response is that they've got no difficulty knowing who's male and who's female, this is silly and pointless, and life is too short and busy to bother with this nonsense. They're saying so in increasing numbers to the police, to politicians and to the media. Instead of more people getting on message, more and more people are starting to say no.