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which part of it did you find appealing?

I never said I found any of it appealing - my spiel was drawing attention to the fact that the characters she wrote as villains were the kinds of people that she is IRL. It wasn't some "Oh voldemort is some actually misunderstood magic Hitler that really just wants what's best for his country and a lot of what he says is unfairly taken out of context" bs, it very clearly portrays him and his faction as evil, and she accomplishes that by writing those characters as parallels to evil people IRL both from history and right now. One of the IRL evil people being herself - JKR.

Like, if I was a Hitler apologist and I wrote a story involving magic Hitler, I wouldn't make that character the antagonist, because would be showcasing my own traits as antagonistic and I probably wouldn't have the kind of self awareness needed to see those traits as negatives. She does. JKR makes it clear that she understands that those traits are evil, and something to fight against literally to the extent of using guerrilla tactics and lethal violence. But despite that awareness, she not only possesses those traits herself, but she fucking blasts them on social media for the entire world to see.

This is a stark contrast against the typical right wing extremist who land somewhere on the spectrum between idiocy and olympic-gold-medalist tier mental gymnastics to justify to themselves that their evil behavior is somehow actually good. JKR actually acknowledges the evil, then does it anyway.