My point with what you highlighted is solely to point out that free speech works both ways. When we speak out, we are not to be sheltered from the consequences of ignorant words. Do I think that Rowling deserves to be threatened? No, absolutely not. Do I think that pieces like mine are fair game? Yes.
I did not threaten Rowling, I merely expressed disappointment and upset at my childhood hero going full TERF on us. That's disappointing at best, and that invites scrutiny. Your issue seems to be with the tone that trans people respond. You may disagree with the assessment that Rowling is transphobic, but most trans people believe that she is. What is or isn't transphobia is not to be decided by cisgender people, any more than racism can be defined for the convenience of white people. As trans folks, as a tiny minority, we deserve the right to define our own experiences without being mobbed, discredited, and devalued by people who don't understand our lived experiences. That's not the world we live in and you have as much free speech as we, but your critiques and assessments here are dripping in privilege and reek of tone policing.
I encourage you to not respond for a while and ponder on exactly why you disagree with the vast majority of trans people who feel that Rowling has turned against them. Why are our voices invalid to you?