In the 'kushina kills naruto fanfiction', perhaps there's a misunderstanding that leads to this extreme situation. For example, Naruto could be framed for something really bad, and Kushina, believing the false information, takes drastic action. It's a really twisted concept compared to the original story where family is so important.
It could be a creative exercise in exploring how a single event, like Kushina killing Naruto, would change the entire Naruto universe. Writers might be interested in seeing how other characters would react, how the story would progress without Naruto, and how the themes of the original story would be altered. For instance, the theme of friendship and mentorship would be severely affected. It's also possible that the writer wants to shock the readers and make them think about the characters in a completely new light.
The implications would be huge. It would completely shatter the positive family image that the Naruto series usually portrays. Fans who love the relationship between Naruto and his parents would be very shocked and possibly offended.
It's a very controversial theme. In the Naruto canon, Kushina is Naruto's mother and they have a loving bond that is a fundamental part of the story. A fanfic with such a premise goes against the essence of their relationship. It would likely shock and upset many fans who are attached to the positive family dynamics in the original series.
There might be a very dark and twisted fanfiction like that. It could be that Naruto is tricked into believing that Minato and Kushina are some kind of threat to the village or to his friends. So in a moment of confusion and misinformation, he takes drastic action. But this goes completely against Naruto's character in the original series.
One possible plotline could be that Kushina is somehow mind - controlled or influenced by an evil force to harm Naruto. Maybe she's under a powerful genjutsu that makes her see Naruto as a threat to the village instead of her son.
Another aspect could be that the fanfiction delves into how Kushina's presence affects Naruto's relationships with others. For instance, his relationship with Sasuke could be different. With a strong maternal figure in his life, Naruto might be more stable emotionally and be able to approach Sasuke in a more understanding way, which could potentially change the whole dynamic of their rivalry and friendship.
In the original, Naruto is the protagonist who is on a journey to become Hokage and gain the respect of the village. If Kushina kills Naruto in the fanfic, then all the dreams and hopes associated with Naruto are shattered. The whole narrative arc of the series is disrupted, and it could lead to a much darker and more despair - filled story for the other characters in the Naruto universe.
In some fanfictions, the authors might take creative liberties and create alternate universes where Naruto and Kushina interact in different scenarios. For example, they could be on a joint mission together, and through that, we see their personalities shine. Kushina's fiery nature and Naruto's determination would make for an interesting dynamic.
One possible fanfiction could be about Kushina finding Naruto in a situation where he's lost in a forest. Maybe she uses her unique chakra sensing abilities to track him down. It could be a heartwarming story of a mother reuniting with her son.