When I put this up on Daily Kos, I got this response from one commentor:

“they’ve been policing the testosterone levels of some cis-gendered women for decades. They certainly don’t police that evenly across the board but certain women have had to submit to testing and been excluded based on the blood tests and other tests if anything about them sets off the alarms, especially if they are women of color.”

I also got another commentor who said ““Let people play their games according to how they see themselves, period.”, which basically grasps the second horn of my dilemma.

If we limited participation in women’s sports to people who are actually chemically transitioning, that might be a step in the right direction (which the second commentor implicitly rejects). But a lot of experts say that any transitioning done after puberty cannot alter the fact that a man’s bones have grown in such a way that gives them an advantage over women. That advantage is apparently what makes it necessary for women’s sports to be a separate category.

I would love to be wrong about this, so if you have some evidence that this advantage doesn’t exist I would love to see it. I really don’t care that much about sports, and I care a lot about equal opportunities and social justice. But so far, it looks to me that letting transwomen play in women’s sports is unfair to ciswomen, and undermines the whole reason for their being women’s sports in the first place.