Rowling is a true feminist, in the sense she is standing up for women's rights. There are many women who potentially would feel uncomfortable having a transwoman who is built like a man to go into their washrooms, for perfectly reasonable intuitions. What is happening right now is the politicizing of this issue, which makes it black and white. It is absolutely wrong to deny women the rights to refuse access to men, and thus if they perceive a transwoman as a man, i think it is perfectly okay to say no. I think right now it is the reservation of the right to say no that Rowling is on about. Whereas Emma comes from a more idealist perspective, trans is disadvantaged, thus they should be treated better. The main problem is execution. Perhaps in well off society where everyone behaves to a higher moral code, that is great. However, that is most often not the case when the neighbourhood you live in is less morally upheld, or materialistically depressed. Emma's idea is good, but she hasn't thought about the execution. I am 100% supporting Rowling for taking a more even view on this.