You're already saying that Harry Potter *was* meaningful to you, you're already putting up that separation between how you felt about it as a child versus how you feel now knowing all the shit that JK Rowling does. We tend to cling onto things from our childhood as a reminder of an innocent past. We encase these things behind glass, beyond reproach
But we see the hate, the harm. The tangible, the money that she makes off of IP rights and residuals are actively being used in the UK to strip trans people of their rights. Right now. She revels in it. It's why she wants to remake the movies into a tv show because all of the original actors fucking hate her
There comes a time where we have to weigh these things, whether our implicit support for something (and someone) so horrible actually outweighs the sliver of nostalgia we derive from it. I don't think it's a very fair comparison. It's okay to acknowledge that this story no longer serves its purpose as it once did for you, and it's okay to let it go