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.
In such a fanfiction, the plot might involve Naruto feeling extremely alone and betrayed. He could start to question his self - worth. Maybe he'll set out on a journey to prove himself not only to the clan but to the whole village. He might find new allies outside the clan who see his potential and help him grow stronger.
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.
Well, one possible plot could be Naruto being disowned due to false accusations of him being a threat to the village. Maybe some villagers spread rumors that he has some hidden dark power, and the village elders, believing the lies, decide to disown him. This would then lead Naruto on a journey to prove his innocence and find his true place in the world.
One possible reason could be his status as a Jinchuriki. In the Naruto universe, being a Jinchuriki is often seen as a curse and a threat. His family might be afraid of the danger it brings to them and the village, so they disown him. Another reason could be political. Maybe there are some power - hungry individuals in the family who see Naruto as a liability to their power - grabbing plans.
In this type of fanfiction, it could be that Kushina has a misunderstanding about Naruto's goals. For example, if Naruto starts to befriend some people from other villages that are seen as potential enemies by Konoha. Kushina, being a very loyal Konoha - nin, disowns him. Naruto would have to prove that his actions are for the greater good of all villages and not just Konoha.
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.
Another storyline could involve Naruto uncovering a dark secret within his family that led to his disownment. As he digs deeper, he realizes that there were misunderstandings and forces at play that he needs to confront. This could lead to a complex and emotional journey of reconciliation or acceptance of his new situation.
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.
In fanfiction, Naruto could be disowned by his father because of secrets. Suppose his father had some dark secrets in his past that Naruto unknowingly got involved with. His father might disown Naruto to keep those secrets buried. Or perhaps Naruto's father was under the influence of some dark magic or mind - control that made him act against his normal feelings for Naruto. It could also be a case of a prophecy that led his father to believe Naruto was a threat to the village in the future, even if there was no real evidence yet.