One possible reason could be that Naruto might feel Kakashi is too strict with his training. Maybe Kakashi's methods are too harsh for Naruto, making him frustrated and gradually developing dislike.
Communication is key. If they sit down and talk about their misunderstandings and feelings, it could start to mend their relationship. Naruto could express his frustrations, and Kakashi could explain his actions.
One possible reason could be that in the fanfiction, Kakashi might have made a decision during a mission that Naruto strongly disagreed with. For example, Kakashi could have chosen to sacrifice something important to Naruto in order to achieve the overall mission objective.
It could also be due to a misunderstanding. Kakashi might be keeping some secrets from Naruto, like information about his parents or some hidden power within him. Naruto, being curious and eager for answers, could misinterpret Kakashi's motives for secrecy as a sign of distrust or dislike, which then turns into hatred.
The 'naruto hates kakashi and sakura fanfiction' completely flips the story dynamic. The original story is built on friendship and teamwork. Here, with Naruto's hatred, that foundation is shattered. It could lead to different power structures in the ninja world. Maybe Naruto teams up with other characters against Kakashi and Sakura. It also affects the emotional tone of the story, from one of hope and camaraderie to one of conflict and animosity.
Perhaps in this fanfiction's universe, Naruto's goals and ideals are completely different from Kakashi and Sakura's. Naruto may be aiming for a more radical change in the ninja world, while Kakashi and Sakura are more conservative. Their differences could lead to Naruto developing a sense of hatred towards them as they constantly oppose his ideas.
One reason could be a divergence in their characters' values. Maybe in the fanfiction, Kakashi's actions or decisions go against what Sakura believes in. For example, if he's shown as being too lenient with enemies when Sakura is all about strict justice.
It can also inspire a lot of debate. Fans might discuss the possible reasons for such a relationship in the fanfiction. This could increase the engagement within the community as people exchange different viewpoints.
It could also be that Kakashi has made some decisions during the Chunin Exams that Naruto doesn't agree with. For example, Kakashi might have chosen someone else over Naruto for a particular mission or task during the exams, making Naruto feel unappreciated and resentful.