Maybe you dislike it because a lot of fanfictions deviate too much from the original Naruto story. They might change the characters' personalities in ways that don't seem true to the source material.
Perhaps you hate Naruto fanfiction because it sometimes creates unrealistic or unappealing pairings. In fanfiction, characters are often paired in ways that seem forced or just don't fit with the overall theme and relationships established in the original Naruto anime and manga. This can be a real turn - off for fans who prefer the original character dynamics.
It could be that Naruto hated fanfiction because it can sometimes create false expectations among the fans. His real story is about hard work, friendship, and perseverance. But fanfiction might focus on other aspects like shipping him with random characters in a way that doesn't fit his true nature. Also, he might see it as an intrusion into his personal story that he and his friends have worked so hard to build in the original series.
In the Naruto series, Sakura was often portrayed as a bit of a damsel in distress early on. Some fans who really like strong, independent female characters might not like her for that. So they write 'naruto hate sakura fanfiction' as a way to vent their frustration with her character development. They may think she didn't grow as much as she could have in terms of being a truly capable ninja on her own, without always relying on the male characters around her.
The exploration of death and hate in Naruto fanfiction is a way for writers to dig deeper into the characters' psyches. For instance, Sasuke's character, who has elements of hate in the original series, can be further explored in fanfiction in relation to death. Maybe he witnesses more deaths that fuel his hatred even more. Writers can also create new characters who are products of death and hate, like an orphan who blames the ninja world for the death of their family and thus harbors intense hate. This kind of fanfiction can provide a fresh perspective on the Naruto universe.
It could be that the cultural aspects of Christmas don't resonate with Naruto's character in the fanfiction. He comes from a different cultural background in the Naruto world, and the whole idea of Christmas - the gift - giving, the Santa Claus, etc. might seem strange and unappealing to him. So, the writer of the fanfiction might have decided to make him hate it for that reason.
In fanfiction, the concept of Naruto hating devils could be a way to explore different aspects of his character. His own experiences with villains and the need to protect his world could lead to such a stance. For example, if devils in the fanfiction are shown as a new threat that undermines the peace he has fought for. His hatred could also be a reaction to the devils' values which might be in direct contrast to his own. So, in the context of this specific type of fanfiction, it's quite possible that Naruto hates devils.
In some cases, it could be because the writer wants to deviate from the typical 'hero is loved' trope. They might think that exploring a scenario where Naruto is hated in his own village can bring out new aspects of his character. It could also be related to exploring the politics within the village. For example, perhaps there are factions in Konoha that see Naruto as a threat, either because of the Nine - Tails inside him or because they fear his growing power. This kind of fanfiction can dig deep into these political undercurrents.
There could be several reasons. Artemis might be a purist when it comes to the Naruto universe. Fanfictions often introduce new elements or change existing ones in ways that she doesn't approve of. Also, if she has read a bunch of poorly written Naruto fanfictions, it could have turned her off completely. She might expect a certain level of quality in storytelling, and when fanfictions don't deliver that, she develops a dislike for them.
One reason could be that some fans are very purist about the original Naruto story. They might feel that fanfiction often distorts the characters or the plot in ways that go against the essence of what Naruto is all about. For example, changing a character's personality completely to fit a romantic or dark and edgy narrative that doesn't align with the source material.
In some fanfictions, Naruto might be depicted as hating females due to a misinterpretation of his character. Maybe the author wants to create a unique and edgy storyline. For example, they could be trying to show how a past bad experience with a female character, like being rejected or betrayed by one, has turned him bitter towards the whole gender in their fictional version.
It could be that she values the authenticity of the original Naruto story. Fanfictions often introduce all kinds of wild ideas and concepts that she might find disrespectful to the carefully crafted world of Naruto. For example, some fanfictions might change the relationships between characters in a way that goes against her understanding of the Naruto universe.