It's honestly crazy, like she could've been known as a beloved children author if she would've kept her mouth shut, but is going to be known forever as a crazy TERF that is so anti-man that they think trans-women are just men trying to get the benefits of being a women. There is a nuance discussion to be had about those who are diagnosed with gender dysmorphia and those that aren't, but I doubt that's something JK Rowling would even know about.
Anyways I always thought of her as a lousy author (notice anything she wrote outside of Harry Potter either don't sell very well and/or don't get good critical reception. She's just a one hit wonder that got really lucky. My wife loves Harry Potter, but after watching the movies I think Harry Potter is a terribly written character all around.