I don't think anyone disputes that gender dysphoria is a thing, and that hormone treatment or gender reassignment can be helpful to some people. The issue, as

I don't think anyone disputes that gender dysphoria is a thing, and that hormone treatment or gender reassignment can be helpful to some people. The issue, as is clear in her Tweet, is how society will deal with the definitions of these things. It isn't as simple as saying "if you say you're a woman, you're a woman", because there is a lot of cultural/societal norms that go along with that. I have a hard time understanding why people can't acknowledge this as an issue, with the obvious example being transgender women destroying biological women at sport. It isn't straight forward.