It could be that in the fanfiction, there are made - up events that lead Naruto to hate Minato. For instance, if there is a plot where Minato was thought to have some dark secrets that affected Naruto's life badly, like being involved in some sort of conspiracy against Naruto without his knowledge. This would give a reason for Naruto to hate him.
One reason could be that Minato values the original narrative and the way his story was intended to be told. Fanfiction can sometimes introduce elements that he might find inappropriate or not in line with the values and themes of the Naruto world. For example, some fanfictions might create overly dramatic or out - of - character scenarios for him, which he would not approve of.
Maybe it's because of the hardships Naruto endured due to Minato's actions. Minato's decision to seal the Nine - Tails in Naruto made him an outcast. In fanfiction, this could be exaggerated to the point where Naruto blames Minato for all his pain and suffering, leading to hatred.
One possible reason could be a miscommunication in the fanfiction. Maybe some secrets were kept from Naruto about his parents that made him feel betrayed when he found out, thus leading to hatred.
In some fanfics, Naruto might be made to hate Minato and Kushina due to a sense of abandonment. If the story is written in a way that emphasizes how Naruto grew up alone and suffering, he could project his anger onto his parents for not being there for him. For example, he might think that if they were alive, he wouldn't have had to endure the taunts and loneliness in the village.
At first, Naruto and Kushina might start to distance themselves from Minato. They could avoid him and not talk to him as much. As time goes on, the hatred might grow deeper. Naruto could start to oppose Minato in public or in important village matters. Kushina might also try to influence others in the village against Minato.
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.
Some fanfictions might portray Naruto hating Team 7 because of a clash of ideals. Naruto has his own beliefs and goals, and if the other members of Team 7 constantly oppose or undermine those in the fanfic, it could cause him to develop a dislike and eventually hatred towards them. Also, if there are issues with power dynamics within the team, like if Naruto feels overpowered or bullied by the others, that could contribute to his hatred as well.
It could be because of the way the Leaf treated his family. Maybe in the fanfiction, new revelations come to light about how the Leaf was involved in some negative things regarding his parents. So Naruto, out of anger and disappointment, hates the Leaf.
In some fanfictions, Naruto might hate orange because it could be a symbol of his past that he wants to break away from. Orange was his signature color, and if he's in a different or darker storyline in the fanfic, he could see it as a reminder of a more naive self.
Perhaps in the fanfiction, the village fails to protect the people he cares about. Maybe his friends get hurt or killed because of the village's negligence or wrong decisions. That would be a strong reason for Naruto to hate the village. Also, if the village's leadership becomes corrupt in the fanfiction and starts treating the people unfairly, including Naruto, it could fuel his hatred.