Death threats, rape threats, publishing someones address & attempting to destroy their career or income are not 'calling out' JKR.
There is no law that says JKR has to do what children on twitter who add nothing to society or GDP (both of which JKR has done & continues to do) say.
They have no right to the astonishing level of arrogance to think they have the right to direct someone elses opinions or beliefs.
Twitter are appalling at dealing with abusers of real women, it's only pretend ones they protect from the real world where nobody really believes you can change sex.