It could also be that his siblings continuously rejected him and his ideals in the past. Naruto has always strived for peace and acceptance, and if his siblings constantly opposed him on these fundamental things, it might lead to his unwillingness to forgive.
One possible reason could be years of neglect. Maybe his family was absent during his difficult childhood in Konoha, leaving him to fend for himself. He had to endure loneliness and the scorn of the villagers without any family support, which could lead to deep - seated resentment and an inability to forgive.
Well, perhaps in this fanfiction, Kushina did something that violated Naruto's principles. Naruto has always been about loyalty and hard work. If Kushina did something like betraying the village or his friends, Naruto, being the stubborn and principled person he is, might not forgive her. Also, it could be that Kushina was absent during some crucial moments in Naruto's life and he holds a grudge for that.
This change in Naruto's character could also affect his ninja path. Instead of focusing on bringing everyone together as in the original story, he might be more focused on getting revenge or just distancing himself from his siblings. This could lead to a darker and more solitary journey for him, which is a big departure from the Naruto we know who is always looking for connection and understanding.
One possible reason could be that he feels abandoned. His parents died when he was a baby and he grew up without them. He might think that if they were more careful or made different choices, they could have been there for him. For example, if they hadn't gotten involved in the fight against Voldemort in a certain way, they might have survived. Another reason could be that he has heard so many stories about them but has no real memories of them. It's hard to forgive someone you don't really know but are supposed to have a deep connection with just based on what others say.
Maybe he feels betrayed by Gryffindor's actions or values that have been misrepresented in the fanfiction. It could be that Gryffindor did something that went against Harry's own moral code, like sacrificing the innocent for the so - called greater good.
One possible reason could be that their personalities don't mesh well in the context of the fanfic. Naruto might be portrayed as someone who values different qualities in a partner that Hinata doesn't possess. For example, if the fanfic focuses on Naruto's love for adventure and freedom, he may see Hinata as too reserved and home - bound, which could lead to a lack of romantic feelings.
One possible reason could be that he has been living a life apart from his family for so long that he feels alienated. He grew up alone in Konoha, with no knowledge of his family for a large part of his life. So, when suddenly faced with this family in the fanfiction, it's hard for him to accept.
Maybe it's related to his sense of independence. Naruto is used to relying on himself and having others touch him might make him feel like his personal space and autonomy are being invaded. He's always been on a journey to prove himself, and being touched could be seen as a form of interference in that self - discovery process.
Naruto could be tired of the expectations placed on him. Everyone has always assumed he would be Hokage since he was a child. He might want to break free from those expectations and define his own path. He may feel that being Hokage is more about fulfilling others' wishes for him rather than his own true desires. So, he decides he doesn't want to be Hokage in this fanfiction.
One possible reason could be that Naruto has been mistreated by the villagers in Konoha for a long time. Despite his efforts to gain acceptance, if he's constantly faced with rejection or unfair treatment, it might lead to him not caring. For example, when he was a child, many villagers shunned him because he was the host of the Nine - Tails. This continuous negative experience could build up over time and cause him to lose his sense of loyalty to Konoha.