Well, one possibility is that Naruto, in his godlike state, might feel that his family's expectations or their way of life is holding him back from achieving some greater good. Maybe he has a different vision for the ninja world that his family doesn't understand or support, so he rejects them to pursue that vision on his own.
His family members themselves could potentially be antagonists in a sense. If Naruto is rejecting them, there could be some family members who try to stop him from leaving or try to change his mind forcefully. They might see his rejection as a threat to the family's reputation or unity.
One possible reason could be a long - held misunderstanding. Maybe Naruto discovers some family secrets that he misinterprets as betrayal or neglect. For example, if he finds out that his family had made some sort of pact that he disagrees with, it could lead to his rejection.
One possible reason could be that his newfound 'godlike' powers make his family feel estranged. They might not understand his sudden transformation and the magnitude of his power, which creates a sense of fear or discomfort, leading them to ignore him.
Well, in some fanfictions, a 'godlike' Naruto might become overconfident. His newfound power could make him act without considering his family's values or traditions. For example, he might use extreme and unethical means to achieve his goals, which his family would not approve of, thus dishonoring them.
One reason could be that Naruto has been through a lot of hardships related to his family in the fanfic. Maybe they didn't support his growth to this godlike state, or they tried to use his power for their own gain. For example, if his family had always been jealous of his potential and when he finally reached this ultimate power, he realized their true nature and decided to cut ties.
One possible reason could be a sense of betrayal. Maybe he discovers some long - hidden secrets about his family that make him feel they are not who he thought they were. For example, if he found out his parents had some kind of deal with the village elders that he disagreed with.
In the long run, if there is a resolution, Naruto's character development could show great growth. He might learn to forgive or understand his family's situation, and through this journey, he could become more empathetic and a better leader. He will have gone through a tough emotional experience and come out stronger, having a more nuanced view of family relationships.
It could be due to a perceived betrayal. Suppose Naruto discovers some dark secrets within his family that he can't overlook. In his 'godlike' state, he might be more morally rigid and thus decides to disown them. For instance, if he finds out that his family was involved in some unethical ninja practices in the past, he would feel compelled to distance himself.