I've got to admit I don't feel like you really addressed the question i asked. The part which seemed to address the question pointed out that it's not as good to be third as first. Which I never disputed. My question is what is the difference between finishing third when a transgirl is first vs when a cisgirl with a biological advantage is first?
I think the best way to answer is that, in terms of public recognition, acclaim, reputation, and everything that goes with it, there is absolutely no difference. Either way, the person who came in third is told, "You are third best." and the person who came in first is told "You are best."
So in one case, the fastest female is told "You are best." In the other case, the fastest female is told "You are third best." If she perceived herself as the best, then either way, society refuses to acknowledge her as best, and to the extent that self perception is influenced by societal recognition, her identity as the best is diminished.
Have you ever watched kids (boys or girls) play sport and spotted the one that looks about 3 years older than the rest just because they happen to have those genetics? And its so easy for them to win. And you just think 'that's not fair'. But that's life isn't it?
Interesting question, because the answer is that no, I have never thought that. I have watched and I have observed the phenomenon, knowing full well that the kid who is best in the seventh grade might be just average by the time the other kids catch up in physical maturity, but it never occurred to me to call that "not fair" in any way.
As it turns out, I'm an official in a youth sports activity with age groups, and we deal with that situation all the time. One of the age groups is 10-13 years old, and we frequently tell kids who are 13 that they need to play in the 14-16 year old division. It's not because "it's not fair" for them to play in their own age group. It's because there's no point. In terms of the first place finish, there would be no need to hold the competition. On the other hand, that's done for the "minor" competitions and practice. We have a few very prestgious tournaments, and for those, they compete in their actual age division, at least until they have a first place win in a major tournament. What we think would be unfair would be to deprive the kid of his place as champion, which he earned.
Since you've asked I will attempt to answer your question but I am at a disadvantage as I haven't kept up to date with the thread and am absent the context of the question.
Why should sport be segregated by gender?
Do you mean at all or do you mean by gender rather than sex?
There is no context. It's a blank slate, and the thread has nothing to do with it. The question was meant to be a justification for having sports segregated by gender. Why do it? I didn't mean why was it done in the past. If it didn't make sense to do it in the past, we don't have to cling to the past. Why do it today? If there is no justification for gender segregation, we should stop.
It seems like your answer is that a lot of it is "marketing and image", and you seem to be saying that we could do it differently based on ability. Should we?
If you were to ask me why we ought to segregate by sex, I could give an answer. It's because sex is relevant to athletic performance. If you were to ask me why we ought to segregate by gender, I would say that should not segregate by gender, because gender is not relevant to athletic performance.
Searching through your answer, I'm not sure if I see whether you think we should segregate by gender or not, and if so, why? You seem to be saying that it isn't very important, but I'm not sure.
but I think we both agree that it's certainly a useful 'first cut' divider of performance
For emphasis, I will repeat, in slightly different words, that I do not agree with this statement. Gender is absolutely useless as a first cut divider. Gender has no effect on performance.
If I've completely missed your point and the actual question was why should it be segregated by gender rather than sex then I think the short answer to that is that if we don't then we are in danger of excluding transpeople from sport entirely and that seems unfair.
You have hit on a pet peeve that is very high profile in the US right now. A lot of state legislatures are, right now, trying to pass laws that would only allow females to compete in the girls' division of sports. There are numerous headlines that say things like, "Proposed law would ban transgender athletes from high school sports."
It's simply a lie.
My position on it is that we should allow transpeople to compete as much as we can but I also accept that there may be situations where for whatever reason it's not possible. but I believe, like pretty much all matters of discrimination, that it should be encumbent on those who wish to exclude people to show that it is necessary to exclude them rather than moving the burden of evidence to proving that someone should be allowed to compete.
Neither I nor anyone in this thread wants to exclude anyone from participation, nor have I heard of anyone in the United States who wants to do so.