Maybe you didn't use the right critical thinking tools.
I'll make one additional effort to elaborate:
At sub-elite level, sport is a leisure pursuit - a competitive one, for sure, but a leisure pursuit nevertheless.
Here's your first mistake. The highlighted is incorrect.
When it comes to the matter of ciswomen/girls at a sub-elite level who have ambitions to become elite-level athletes, they (in my model) will already be able to discount any transwomen/girls who might be beating them - since these people will pose no competitive threat to them at elite level. In addition, if ciswomen/girls and their families feel sufficiently strongly about the matter as to reject the validity of transwoman/girl competitors, they're perfectly at liberty to discount the efforts of those transwomen/girls in favour of a "ciswoman/girl leaderboard". If that's what floats their boat.
This is also not entirely correct and shows a lack of understanding of how sports work.
My daughter's current boyfriend coaches both high school and travel baseball. Most of the players on the high school team play travel ball. Travel ball is all about showcasing talent for scouts at the next level. Scouts come to these tournaments because they can see players from fifty teams all at a single event. And they watch kids starting as young as 12 years old.
It is not a "leisure" activity at this level. This is the point where the kids are putting in a grueling amount of work and the parents are spending thousands of dollars to a) be on the team and, in some cases b) for individual private coaching. In softball, for example, it is very common for pitchers in Jr. High to work with a private pitching coach.
And then there are the camps. My daughter attended a volleyball camp at a Big Ten University between 7th and 8th grade. These are both instructional and scouting/recruiting tools. Yes, at that age. It is very significant who stands out at camp.
So what am I saying? The pursuit of an elite career begins at a
much younger age and a
much lower level than you credit. At the levels you call "leisure" the serious players are already attempting to pursue it as a career.
So...park district recreational league? sure, that's leisure. School and club sports? Not so much.
Oh, almost forgot. Getting attention in school or club sports is the main gateway to elite sport. Kids already switch schools or transfer to private academies so that they aren't playing with other players at their level at their position. They need to be the
star setter or the
star point guard. They need to be on a team where they can stand out and showcase their talents. So it's not just a case of the scouts will look past one player and see the other that's next in line.