So when I said that "ewww" isn't an argument I was taking it to mean "I find contemplating X unpleasant" rather than "if X happens, people Y who experience it will find it unpleasant". The former is a much much weaker argument than the latter. (I should, of course, have considered the latter as well, and I'm not sure why I didn't. If women at a gym find it unpleasant when someone who identifies as female but has male-looking anatomy uses their changing room -- which they well might -- that is a bad thing, and that fact does constitute an argument for not allowing that. I happen to think that the arguments the other way are stronger, but as I said before I think both sides are defensible.) [...] In the case we're discussing here, the additional right comes with a perfectly matched additional responsibility. If access to a gym's changing rooms goes by expressed gender identity rather than anatomy, then identifying as female lets you into the women's rooms at exactly the same time as it bars you from the men's. (One might argue that in fact someone with female identity but male anatomy should be allowed to use either to reduce the likelihood of their getting assaulted, or something. Members of unusually vulnerable groups sometimes get additional rights even if membership of the group is self-selected, and that's not obviously unreasonable. The additional rights are compensating for additional risks rather than additional responsibilities they people in question have taken on.) [...] Nice steelmanning of my position. No, wait, not steelmanning. The other thing. But I'm a bit confused now about what your position is, because I think you've now said the following things: * A gym changing-room setup that seems to offer extra opportunities for sexual assault against trans people isn't a problem; the risk is very small. * A gym changing-room setup that makes trans people feel uncomfortable and stigmatized isn't a problem; no one should expect that the universe will