It completely flips the original story. In the original, Naruto loves the Leaf Village and is willing to sacrifice everything for it. In this fanfiction, his hatred changes the dynamic. It might make his relationships with other characters like Sasuke, who also had issues with the village, more complex.
The fanfiction might introduce new storylines. Instead of Naruto being the hero who defends the village, he could become an anti - hero or a villain. This would change the focus from the village's battles against external threats to internal conflicts caused by Naruto's hatred. For example, there could be a civil war - like situation within the Leaf Village.
It also changes the emotional tone. The original Naruto series has a lot of themes about hope, friendship, and loyalty to the village. In this fanfiction, the themes would shift to more about disillusionment, anger, and the breakdown of trust. It could explore darker aspects of the Naruto universe that were not as prominent in the original.