Perhaps there were some dark secrets in his clan that he discovers. These secrets could be related to past wrongdoings, like how they treated other clans or individuals. If Naruto has a strong sense of justice, learning about these things might make him hate his clan. It could also be that he feels ostracized or different within his clan, like if he has abilities or beliefs that are not accepted by the majority of the clan members.
Another reason might be related to personal loss. If something bad happened to Naruto because of his clan's actions or inactions, it could turn his feelings towards hatred. For instance, if his family was treated unfairly by the clan, or if he lost someone dear to him due to clan politics. This could create a deep - seated resentment towards the clan as a whole.
One possible reason could be that he feels burdened by the expectations associated with the Uzumaki clan. Maybe he doesn't like the constant attention or the pressure to live up to the clan's legacy.
In the fanfiction, it could be that Naruto has had some personal negative experiences with Uchiha clan members. He might have witnessed some Uchiha using their power to bully or oppress others. Naruto, being the kind - hearted person he is, would not tolerate such behavior and thus develop a hatred for the clan as a whole. This could also be related to the Uchiha's reputation for being a bit of an outcast clan, and Naruto might see them as not fitting into the harmonious village life he envisions.
It could also be due to a clash of personalities. The Inuzuka clan has a very distinct and often aggressive way of approaching things, with their strong bond with their ninja dogs. Naruto, with his more free - spirited and sometimes impulsive nature, might find their ways irritating and over time, this could develop into hatred.
Maybe the clan heads have been unkind or unfair to some of Naruto's friends or people he cares about. If they've shown discrimination or harsh treatment towards those without strong clan ties, Naruto, being empathetic, would likely develop a dislike for them.
It could also be because of the Uchiha clan's perceived aloofness. The Uchiha might seem standoffish and exclusive, which could make Naruto, who values friendship and community, dislike them. They may have a reputation for being more concerned with their own clan's affairs rather than the well - being of the whole village.
One possible reason could be misinformation. Maybe in the fanfiction, Naruto was told false stories about his mother that made him dislike her. For example, if he was told she abandoned him for some untrue reason.
One possible reason could be a misunderstanding. Maybe some false information was spread within the fanfic about the Uzumaki clan that made Naruto believe they were bad. For example, if there were lies about his family's past actions that he wrongly thought were true.
One possible reason could be some sort of dark secret within the Uzumaki clan that Naruto discovers. Maybe it has something to do with the clan's past actions that go against his moral code.
In this fanfiction, Naruto could reject his clan because of the dark secrets or past actions of the clan. He is a character who values justice and friendship. If the clan has a history of wrongdoings that he discovers, he may not want to be associated with it. Also, Naruto has his own dreams and goals that might not fit within the framework of the clan. He has always been a bit of a rebel, and rejecting the clan could be his way of standing up for what he believes in.
One possible reason could be to seek greater power and training opportunities elsewhere. Maybe he feels restricted within his clan in terms of the type of jutsu he can learn or the level of training he can receive. So, he decides to leave to explore different ninja arts and grow stronger on his own terms.