For quite a while there has been a gender division in most sports. In fact, in most pro sports it's unstated but assumed that the participants will all be male, except in sports described as women's sports (e.g., women's basketball). In the Olympics, most sports have men's and women's divisions. There was no sinister intent originally. It was merely to give women a fighting chance to be the best without having to compete against men who were better endowed by nature with the physical attributes needed to win in most sporting activities. The records achieved by men and women in their respective categories tends to bear out the wisdom of dividing the sexes in this way.
A cynic might argue against such a division by observing that the women who tend to win in the women's division tend to take on the attributes of males anyway. Hard muscles, larger physiques, and in many cases, higher testosterone levels. (Both sexes have testosterone and estrogen in their systems, but in different proportions.) Women who develop their bodies to the extreme often stop menstruating.
So, as if distinguishing between male and female athletes wasn't a bit iffy to start with, let's inject the current phenomenon of transgendered people who want to compete.
Male athletes who were once female. Female athletes who were once male. Athletes with the bodies of one sex or the other who psychologically "identify" as the opposite sex. And then what about those who have the genetalia of both sexes...both a penis and a vagina?
How would YOU set things up so that it's fair for all. Or...is that even possible?