It's fascinating to watch groupthink at work. The Internet loves a good lynching and to hell with facts. The idea that Rowling is transphobic is inane and held only by people who want to believe whatever they read online and can't be bothered (a) to do the relevant research, and (b) assess facts reasonably rather than through the lens of prejudice. In other words, the Rowling-transphobic meme is tiresome, ignorant, and fortunately utterly irrelevant to JKR herself.