When I met up with my family on Saturday, one of my brothers stated that JK Rowling was a thoroughly unpleasant person. I did not challenge him on this, though my two children knew that I wanted to. It was a family meal and while I do feel strongly about her views, I agree with a lot of them.
However she is often given a lot of stick for increasing transphobia which does exist. I am not sure if this is due to the increased visibility of non-binary people, or the way that people are trying to discriminate against them (in ways that JK Rowling and I would disagree with).
What was interesting was this video on how gender boundaries have been blurred for a long time.
Also, just in case those who are more transphobic than me try to say that trans issues have not been present for a while, this video is of interest.