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 original Naruto storyline, Naruto is proud of his Uzumaki heritage. So in this fanfiction, it's a complete deviation as it goes against Naruto's established character traits.
Well, it completely flips Naruto's relationship with his own clan. In the original story, Naruto is proud of his Uzumaki heritage. But in this fanfiction, his hatred changes the emotional core of his character. It might also change his relationships with other characters who are related to the Uzumaki clan, like Hinata, since she's his wife and Naruto's new attitude towards the clan could create tension.
Well, he could start a family with Hinata and have lots of kids, passing on his Uzumaki bloodline. Then, he could encourage his friends who have some Uzumaki connection, like Karin, to also have families and pass on their Uzumaki genes. He could also set up a school or training center in the Uzumaki land, teaching the Uzumaki ways of life and ninjutsu, which would attract orphans or those who want to be part of the Uzumaki clan.
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.
The original story focuses on Naruto's journey to become a great ninja and protect his village and friends, which includes his Uzumaki heritage as a positive factor. In the fanfic where he hates the Uzumaki clan, it changes the fundamental motivation and emotional core of Naruto's character. It might lead to different alliances and conflicts that are not in line with the original narrative.
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.
Well, it could be that the Uzumaki clan has some hidden knowledge or ancient artifacts. In the fanfiction world, they might discover an artifact that has the power to save Naruto from a life - threatening situation. Maybe it's a charm that can heal his wounds or reverse a curse placed on him. And since the Uzumaki clan has a rich history, there are many ways they could use their heritage to save Naruto.
Yes, there are likely fanfictions with this premise. Naruto being an Uzumaki has a strong connection to the clan. In many fanfictions, authors explore the idea of Naruto taking on the role of the clan head. This can lead to various storylines, such as him restoring the Uzumaki clan to its former glory, uniting remaining members, and using his position to bring about positive change in the ninja world. It also allows for exploration of Uzumaki clan lore and powers that Naruto could inherit and develop further.