Gay men and women being transphobic is... actually fairly common, actually. Being gay does not mean you automatically feel solidarity with trans folk, even if the roots of the gay rights movement involve us. The TERF movement in the U.K. started as a lesbian movement, and the argument that “girls are being forced to be trans” is one of their talking points.

Defending the right of someone to write a book about their thinly veiled hatred is one thing; commenting that you think there’s a good point in it and other people should read it is another.