It does come up often, PECS. Her case is really tricky, and because she is black, anyone who suggests that there should be a cut-off for testosterone levels in female athletes is accused of racism as well as transphobia- it’s impossible to discuss dispassionately.
I think that whereas CS’s case is really difficult, the bottom line has to be that everything about competitive sport comes down to physical differences- people with long legs will be better at running, those with upper body strength will excel at throwing etc. It has to work both ways to be fair, though. If those physical differences push someone into another category (as in boxing, or in a different way in para-olympics) the athlete should compete in that category. It’s either that or scrap categories altogether and do away with female sport, para competition and weight categories in fighting.
Unfortunately for CS, the ‘other category’ would be men’s racing, and she doesn’t qualify for that (although as we have seen, male-bodied athletes find their way onto women’s categories). As men have the advantage over women, it is debatable whether she would stand a chance in a man’s race, though - which is, of course, why it is unfair for male-bodied people to compete in women’s races. It’s really difficult.