Some members of the family might get angry. They may feel that Harry is being ungrateful for all they've done for him. They could start to spread negative things about Harry within the family circle or even outside to their friends.
Well, it makes him seem more complex. In the original stories, Harry is often seen as a family - oriented person. But in this fanfiction, it shows that he can be a character with flaws and different emotions. It gives him a more human side, not just the hero who always loves and protects his family.
It could be that Harry has a different view of family due to his unique experiences. He has been in a magical world full of danger and mystery, and his family might not be able to relate to that. He might feel that they are from two different worlds now, and his family's lack of understanding of his magical life makes him not care about them as much as he should in a traditional sense.
One possible reason could be a long - held grudge. Maybe there were past incidents in the family that made Harry feel betrayed or neglected. For example, if his family always favored another sibling over him, it could lead to his apathy.
One possible reason could be a misdirection in his goals. If in the fanfiction he is overly focused on proving himself to the village, he might think that family is a distraction. So, he starts to distance himself from his family to concentrate more on getting recognition from the village.
His perception might become more positive. If he discovers great deeds his family has done in the past, he could feel a new sense of pride.
Well, it could make the story much darker. Naruto's family, especially his parents, are important in his growth. If he doesn't care about them, his values would be completely different. He might become more self - centered and less likely to fight for the village. For example, his motivation to protect Konoha was partly because of his father's legacy. Without that family - driven motivation, he could turn into a character who is only after personal power.
Perhaps Harry is so devoted to the original canon of a story, like a book series or a movie franchise, that he dismisses fanfiction. Fanfiction can sometimes deviate a great deal from the original, and if Harry is a purist, he might not care for these reinterpretations. He might think that the original creators' vision should be the only one considered, and fanfiction is just a distraction from that.
One plotline could be Naruto's journey to find out the truth about his family. He doesn't care about them initially, but as he uncovers secrets, his feelings start to change. Maybe he discovers that they had a noble reason for their actions that he misinterpreted.
I'm not sure specifically as there could be many interpretations. It might be about a situation where Harry has reached a point of apathy or detachment in the fan - created story.
In many 'Harry Potter Dursley fanfiction' stories, the Dursleys are used as a contrast to the wizarding world. Their normal, mundane lives are juxtaposed with the magic and wonder of Harry's world. This can create interesting storylines where they are either forced to accept the magic or try to fight against it in their own stubborn ways.