In many ways, I like Dawn Butler. And she did not quite call for "transwomen" to be allowed on all-women shortlists. But at least she has opened the debate. Some of us were there in the 1990s, and the world has changed. The idea that the MP simply could not be a woman is now completely alien. All-women shortlists ought simply to be abolished. There are crises of representation. But they are elsewhere.