People end up hating shows, movies, comics, etc and brand them as "cursed content" not for bad writing, not for being weird or obnoxious, but because they were popular. When something gets too popular, it usually either attains a massive fandom, or a massive amount of hater bandwagons. And that leads to toxic fandoms.
There's usually nothing wrong with the media in question. People tend to despise said media because a youtuber said it was trash or someone on twitter started a fandom war because of it. In the end, most "cursed" medias aren't even given a fair chance and are branded as bad. It has nothing to do with the media and everything to do with popular interaction.