I don’t believe fandom is an absolute bad but there is some inherent toxicity to it, in regards to the possessive nature it engenders in fans. That’s not healthy and the way the internet works really just serves to heighten the hyperbolic and extreme emotions and unhealthy tendencies. I don’t really know if there’s a solution or anything but it’s a complicated issue.
I imagine a vastly improved personal life would solve many problems.
Perhaps I’m just projecting.