Can you clarify: are you saying that in sport where there is male advantage you would segregate by sex, whereas in sport where there is no male advantage you would segregate by gender? What's the justification for segregation in the latter case?
What I was trying to say was that men always have an advantage over women when it comes to physical strength but that the consequences are greater in some sports than in others. Sex segregation is more important in contact sports or sports like weightlifting which are about physical strength.
I am quite aware that men have an advantage in every sport bar long distance running or swimming but we also have to accept that elite international sport isn't just about natural ability and skill. Other factors like training facilities also play a role, which is why Britain now gets more medals than before there was lottery money. We haven't just got better at sport! That's why I think we need research evidence from different sports, not just assuming the effect of male puberty is exactly the same across the board. It's also why people like FondofBeetles are so important because they address arguments like 'Michael Phelps had big feet. It's just the same as as transgender women competing in women's sports'. The various mixed relay events at The Olympics have helped show the importance of sex based differences really well.
I wasn't suggesting separating sports by gender identity, just highlighting the way in which the 'transgender umbrella' creates confusion by including non binary athletes. As another poster pointed out, there are lots of definitions of non binary. I was answering the BBC's question about why there has been more controversy about Laurel Hubbard than Quinn. Quinn has no physiological advantages compared with their rivals.
The same problem applies when DSD athletes are included under the transgender umbrella. As another poster pointed out, there is so much on social media about the unfairness of Laurel Hubbard and Stephanie Beecham (both white) competing in the Olympics when some African DSD women cannot.
I did watch some skateboarding, dressage and BMX cycling contrary to what some posters suggested. I was just highlighting that fairness and women's safety is more compromised in some sports than others. I am more bothered about Fallon Fox competing (and being consulted as a spokesperson) than I would be about a transgender skateboarder.
World Rugby did its own thing, examined the science and ended up with a clear compromise. Surely that's better than just following IOC rules, like the New Zealand weightlifting or Canadian archery federations?