It could also be due to a prophecy. Suppose there's a prophecy that Naruto will bring great disaster in the future. His parents, believing in the prophecy, might decide to disown him in an attempt to avoid that future. They might think that by cutting ties with him, they can somehow change the course of events.
Naruto would probably become more independent. Without his parents' support, he has to rely on himself. He might start to train harder to prove himself to everyone.
Well, if Naruto was disowned by his parents in a fanfiction, it would make his journey even more tragic. He already faces so much isolation in the original story. This would intensify his need for acceptance and belonging. He might become more distrustful of people initially. For example, his relationship with Iruka Sensei could be even more significant as he would be desperate for any positive adult influence.
A plotline could involve Naruto being disowned and then finding out that his parents were actually being controlled by an enemy. He then has to decide whether to forgive them or not while also dealing with the new threat. Or perhaps Naruto is disowned and he starts to form his own ninja group of outcasts, fighting against the traditional ninja villages that shunned him. This could lead to a whole new set of power dynamics and battles.
One possible plotline could be Harry feeling extremely lost and alone at first. He might have to find a new place to live, perhaps with the help of his friends like Ron and Hermione. He could struggle with self - worth, constantly wondering what he did wrong to make his parents disown him.
One possible reason could be a misunderstanding. Maybe he discovers some secrets about his parents that he misinterprets. For example, if he finds out they were involved in some dangerous or morally ambiguous activities in their youth that he doesn't fully understand at first.
It could be related to some prophecy or superstition within the clan. They might think Naruto is a bad omen or something that goes against their traditional beliefs, so they decide to disown him.
Harry would likely become more self - reliant. Without the support of his parents, he'd have to learn to take care of himself. He might grow more cautious and distrustful, especially if he doesn't know the real reason for the disownment.
Naruto's reaction could be complex. He would feel a deep sense of loss and loneliness. But he has the spirit of never giving up. He might start to question the concept of family and what it really means. This self - reflection could lead him to grow as a person. He could also become more empathetic towards others who have been rejected or abandoned. In his journey, he might encounter people who have similar experiences, and together they would form a bond and support each other while he tries to find his place in the world without his family.
Naruto could start to focus more on building relationships outside of his clan. He would seek acceptance from his friends like Sasuke, Sakura and Kakashi. Their support would give him the strength to rise above the situation. He might also start to explore different jutsu and skills on his own, without relying on any clan teachings.