It could be that in this fanfiction's universe, Naruto's family has some sort of dark connection or alliance that goes against Naruto's new moral code as a godlike being. He may see their actions as unforgivable and as a result, choose to disown them in order to uphold his own sense of justice and righteousness.
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.
In this kind of fanfiction, Naruto might have reached a god - like state where he believes his family's values and traditions are no longer relevant to him. He could be on a journey to create his own identity independent of his family, perhaps after experiencing some sort of betrayal from within the family that only he, in his newfound power, is aware of.
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.
His father might be extremely disappointed. As a former Hokage, he would have expected Naruto to uphold the family's honor. His mother would probably be heartbroken, having always believed in Naruto's good nature.
He might feel very sad and lonely at first. Naruto has always craved family love and acceptance, so being ignored by them would be a huge blow.
His family members would likely be disappointed and hurt. They might try to reason with him at first, hoping to bring him back to his senses.
The plot could develop with Naruto creating his own new 'family' of sorts. He might gather like - minded ninjas who understand his vision. For example, he could team up with ninjas from other villages who also strive for a new kind of ninja world order.
At first, Naruto would be very hurt by his family's neglect. But as he discovers his godlike powers, he would start to focus on self - improvement. He might become a bit of a loner, training hard to master his powers. As time passes, he would become more empathetic towards others who are also neglected or outcast. His character would transform from a boy seeking family approval to a powerful individual who defines his own worth and helps others do the same. For example, he could start training other outcast kids in the village, sharing his knowledge and power with them.
Well, in fanfictions, often the plot takes a different turn. Naruto might hide from his family because there could be some sort of misunderstanding. For example, there could be false rumors about him being involved in something bad. And he might think that his family would believe those rumors without giving him a chance to explain. So, to avoid the immediate confrontation and judgment, he chooses to hide.
Maybe he has some personal grudges or misunderstandings within the family in the fanfiction. It could be that something happened in the past that made him feel betrayed or unappreciated, so he refuses to offer help.