Another reason might be ideological differences. Naruto has always believed in a certain set of values, like friendship and protecting the weak. If Konoha starts to deviate from these values, say by becoming more militaristic and aggressive towards other villages without just cause, Naruto could feel that he no longer belongs there and thus dissolve the bond.
It could also be due to personal growth. As Naruto matures, he may realize that his goals and the village's goals are no longer in alignment. He might want to pursue a more individualistic path, perhaps traveling the world to help people on a larger scale rather than being tied to Konoha. This would lead him to break the bond with the village.
It would create a major shift in the power dynamics. Naruto is a powerful ninja, and his departure from Konoha would leave a void. Enemies might see this as an opportunity to attack the village. Also, his friends in Konoha would be deeply affected, leading to internal conflicts within the village as they struggle to understand his decision.
In a fanfiction scenario, perhaps a love interest could be a cause. If Naruto fell in love with someone who had a strong hatred for Sasuke, and Sasuke refused to make amends or change his ways for Naruto's sake, it could create a rift. Also, if Sasuke's power-hungry nature made him try to steal Naruto's power source, like the Nine - Tails, it would be a huge betrayal and could result in Naruto severing their bond.
The consequences would be far - reaching for the village as well. The dynamic between Konoha and Sasuke's actions has always been influenced by Naruto's bond with him. If that bond is dissolved, it could lead to more open hostility from Sasuke towards Konoha. Also, Naruto's other friends, like Sakura and Kakashi, would be affected. They might be caught in the middle, trying to either reconcile the two or choose sides, which could create fractures within their own relationships.
One possible reason could be fear. Naruto has the Nine - Tails within him, and some in Konoha might be too afraid of its power getting out of control. They may not fully trust Naruto to keep it in check.
One reason could be betrayal. If Naruto discovers that some in Konoha have been secretly plotting against him or have been involved in something immoral that goes against his values, he might forsake the village. For example, if there was a conspiracy to keep him from achieving his true potential for their own gains.
One possible reason could be fear. Naruto is extremely powerful, and some in Konoha might fear that he could one day lose control of his power. Another reason could be political intrigue. There may be certain factions within Konoha that see Naruto as a threat to their power and influence. Also, jealousy might play a part. Naruto has achieved so much and has the love of many, and some might be jealous and thus plot against him.
Perhaps the Konoha leadership made a bad decision. They might have thought that distancing themselves from Naruto would be better for the village's overall image. Or they were influenced by some elders who held grudges against Naruto's father and took it out on Naruto.
One possible reason could be that Naruto discovers some dark secrets within Konoha. Maybe he finds out that the village elders have been using him all along, not truly caring about his well - being but only his power as a Jinchuriki. This realization could be so shocking that he decides to turn against the village.
One possible reason could be that Naruto discovers some dark secrets about the village leadership that go against his values. For example, if he finds out that they have been using underhanded means to maintain power.
Another reason could be that he witnesses corruption or unfairness within the village leadership. If he sees that the system is rigged against certain groups, including himself or his friends, he could grow to hate Konoha and decide to leave.