One reason could be a misinterpretation of their complex relationship. In the original story, Naruto actually cares deeply for Sasuke. But in fanfiction, the author might be exploring a 'what if' scenario where Naruto's frustration turns to hate due to Sasuke's repeated betrayals. Another reason could be to create a more angsty or dramatic plot. By having Naruto hate Sasuke, it can introduce new conflicts and character developments that are different from the canon.
In some cases, the 'naruto hates sasuke fanfiction' might be written to explore the darker side of Naruto's character. Normally, Naruto is very forgiving, but by making him hate Sasuke, the writer can delve into how Naruto would be if he held grudges. Also, it could be a reaction to some fans who feel that Sasuke got away with too much in the original story, so the fanfiction makes Naruto hate him as a form of 'justice'.
Perhaps in this 'naruto hates sasuke fanfiction', the author wants to show how extreme circumstances can change Naruto's feelings. For example, if Sasuke were to cause harm to Konoha on a much larger scale than in the original story. It could also be that the fanfiction is set in an alternate universe where their initial encounters were much more hostile, leading to Naruto's hatred.
Another reason might be related to their different ideologies within the ANBU. Naruto may have believed in a more collaborative and friendly approach within the organization, while Sasuke might have been more focused on individual achievement and power. This fundamental difference could lead to Naruto hating Sasuke in the fanfiction.
One possible reason could be jealousy. Maybe fem Sasuke is jealous of Naruto's natural charisma or his ability to make friends easily. Another reason might be related to their different goals. If fem Sasuke has a very different view of how to save or change the ninja world compared to Naruto, it could lead to hatred.
In lemon fanfiction, the 'sakura hates sasuke' scenario can stem from various factors. One possibility is that Sasuke's past actions, such as his association with dark forces or his disregard for the safety of the village which Sakura holds dear, could make her resent him. Additionally, if in the fanfiction's world, Sasuke has made decisions that directly oppose Sakura's efforts to build a relationship or a peaceful environment, it would be understandable for her to hate him. For instance, if he undermines her medical work in the village or her attempts to bring the shinobi world together.
One possible reason could be a misunderstanding. Maybe Naruto misinterprets some of Sasuke and Sakura's actions as being against him or the village. For example, Sasuke's quest for power might seem like a threat to Naruto, and he could misread Sakura's loyalty to Sasuke as a form of betrayal to their friendship.
One possible reason could be competition. Maybe in this fanfic, they are competing for something like recognition in the ninja world. Naruto, as a female, might feel that Sasuke is getting more attention or opportunities, which makes her jealous and eventually turns into hatred.
One possible reason could be jealousy. Maybe in the fanfiction, Naruto feels overshadowed by Sasuke in Sakura's eyes, which leads to his hatred. Another reason might be that he perceives their relationship as a threat to his own bonds with them. For example, he could think that Sasuke and Sakura's closeness excludes him in some way.
Maybe it's because of the different power systems. Naruto has chakra and his ninja abilities, and Rias has her devil powers. If in the fanfiction these power systems are not properly integrated or if one overshadows the other in an unappealing way, Naruto could be depicted as hating Rias. Say, if Rias' devil powers are made to seem too overpowering and it goes against Naruto's sense of fairness in combat, it could lead to such a scenario.
It could be that the fanfiction simply doesn't meet Boruto's standards for what the Naruto universe should be like. He has grown up in that world and has his own ideas about how things should be. Fanfiction can be very hit - or - miss in terms of quality and faithfulness to the source material. If it's of poor quality or changes things too much, Boruto might hate it.
It could be that the fanfiction creates a forced or contrived situation. Naruto is a character known for his determination and positive energy. A plot where he hates his sister might not fit well with the overall Naruto universe. It might be a way for the author to create drama in a rather unappealing way that doesn't resonate with the essence of the Naruto character.
Maybe the fanfiction portrays Hinata in a way that doesn't align with her true character. For example, it might make her overly aggressive or weak in a way that doesn't fit the original concept.