Well, it could also be due to shipping wars. Many fans ship Naruto with other characters, and they might see Sakura as an obstacle in their preferred pairing. So they create these types of fanfictions to push their own shipping ideas. They might feel that if they can make Sakura look bad in the fanfiction, it would somehow make their preferred Naruto - other character relationship seem more plausible or appealing.
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.
In fanfiction, Naruto could hate Sakura due to her treatment of him. She often overlooked his feelings in the original series. Fanfic authors might exaggerate this aspect. For example, if Sakura continuously dismisses Naruto's achievements or makes him feel inferior, it can build up to a strong dislike or hatred in the fan - created stories. Also, some fanfictions might explore a darker side of Naruto where his pent - up emotions turn into hatred for Sakura, perhaps as a way to show his growth into a more complex character with a wider range of emotions than just the positive ones shown in the original anime.
Another reason could be that she values the authenticity of the original Naruto narrative. Fanfictions are often the product of fans' wild imaginations and might not align with the official story. She might be a purist when it comes to the Naruto story she is a part of, and thus hates fanfiction that strays too far from the original.
One reason could be for the sake of the Naruhina relationship. To make Hinata seem like a better match for Naruto, the writer might make Naruto hate Sakura. For example, if Sakura is written as being too pushy or bossy in the fanfiction, Naruto could start to dislike her.
It could be that in the fanfiction, Naruto's character is developed in a way that Sakura, within the sasunaru concept, doesn't approve. For instance, if the fanfiction makes Naruto too weak or too different from his original self. Also, if the fanfiction focuses too much on certain relationships that she doesn't like, she would hate it.
One possible reason could be for the sake of creating a more complex love triangle in fanfiction. Maybe the writer wants to explore a different dynamic where Naruto and Hinata's relationship is strengthened by having a common dislike for Sakura. It could also be that the fanfiction writer is trying to give Hinata more agency and make her a stronger character by having her oppose Sakura in some way, perhaps in matters related to Naruto's affections.
Well, in fanfic, the writer can take creative liberties. It could be that Naruto has grown and evolved in a different way than in the original story. He might have seen Sakura's flaws more clearly over time. For example, her obsession with Sasuke could be seen as a negative trait that affects the team dynamic. And as Naruto values the team highly, this could cause him to develop a dislike and eventually hate for Sakura.
One possible reason could be that in some fanfiction, Naruto might be written to hate them because of their early treatment of him. Sakura was often dismissive of Naruto in the beginning, and Ino was more focused on Sasuke too. So in a different narrative, Naruto could hold grudges against them for not seeing his worth initially.
In some fanfiction, Sakura might hate Sasuke because of his actions towards her. For example, he may have continuously rejected her advances coldly. This could lead to her developing feelings of hatred as her love is not reciprocated and instead met with indifference or rudeness.
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.
Well, in Naruhina fanfiction, the idea of Naruto hating Sakura can be a device used by writers. It could be due to jealousy in the context of the story, like if Sakura is shown as being too close to someone Naruto doesn't like. Or it could be a misinterpretation on Naruto's part of Sakura's actions. But this is all part of the fictional world of fanfiction, and not a given in the overall Naruto universe.