> There's a reason why (competitive) sports are usually divided by male/female
This division is arbitrary. The reason for this is the premise of fair competition that identical people should compete. Yet white males dominate male swimming whereas black males dominate male sprinting. There have been physiological explanations based on center of mass things afaik. Knowing that, why don't we split the competitions accordingly? Martial arts have categories based on weight, why shouldn't we have categories based on arm-length or blood volume? It's easy to see that the whole premise of fair competition is very naïve: where do you stop? What are the criteria for determining if competitors are "identical enough"? Choosing these criteria will be a political choice. Transgender people in sports are disturbing the status quo, but they just made apparent the inherent instability of the thing.
Now i don't know about you, but when i personally do sports, for one i'm not good enough that physiological characteristics make the greatest differences: this problem mostly appears when we reach the limits, by "optimal training". Second, i'm playing as an amateur, that is for entertainment and for the art of it, which means that i will mostly play to be part of a good game, show off and see nice skill displays, and share this experience with other people, some of them with different levels of training and physical capabilities.
I just wanted to say that this thread is imho unrelated to the issues of transgender and more to the fact that competitive sports is broken and the political struggle between professional and amateur sport.