The tides would be severely affected. Since the moon has a gravitational pull on the planet, without it, the oceans would become very unstable. Coastal areas would experience massive floods and then receding tides like never before, which would disrupt fishing and coastal communities.
The ecosystem would be thrown into chaos. Many animals rely on the moon for things like migration patterns and mating cycles. Without the moon's influence, some species could go extinct, which would then have a ripple effect on the entire food chain in the Naruto world.
The power balance would be completely disrupted. Without the ninja villages, there would be no organized ninja forces. This could lead to smaller groups or individuals vying for power, causing chaos everywhere.
He might become a hero in the eyes of some people. But he could also be feared by others who see his power as a threat.
Another idea is that Naruto has to go through some extreme emotional turmoil which unlocks a hidden potential within him. We know from the original series that his emotions can often fuel his power. So, if something really tragic or inspiring happened, like the threat of total annihilation of the ninja world, he could break through his limits and gain the power to destroy the moon.
One common plot point could be Naruto's sudden change in ideology. He might shift from being a protector to a destroyer due to some extreme event. Another is the reaction of his friends and former allies. They would be shocked and try to stop him, which could lead to some intense battles. And often, there would be a mysterious force or character behind his transformation.
In such a fanfiction, it would be a very dark and alternative take. Naruto, being godlike, might have been pushed to the edge by something in Konoha, like betrayal or unjust treatment. Maybe he discovers some dark secrets about the village leaders that make him snap.
Naruto's hatred for the world in fanfiction might also lead to a change in his powers. His negative emotions could either make him lose control of his existing powers or lead to the development of new, more dangerous powers that are fueled by his hatred. This would pose a great threat not only to his enemies but also to those he once considered friends.
If Naruto dies at birth in fanfiction, it would have a huge impact on the story's positive themes. Naruto was a symbol of perseverance and the ability to overcome one's past and hardships. His death would mean that those themes would be lost. Also, the Akatsuki's plans regarding the Nine - Tails would be disrupted. They might turn their attention to other 'jinchuriki' more quickly. And characters like Iruka, who played an important role in Naruto's life, would have a completely different story arc as they would not have Naruto to mentor and befriend.
He would likely be seen as a traitor by the village. The villagers, who once saw Naruto as a hero - in - the - making, would now turn against him. He'd be hunted by the ninja forces of Konoha.
The village would likely be in chaos. Naruto has been a key figure in protecting the Hidden Leaf. Without him, there would be a power vacuum, and enemies might see it as an opportunity to attack. The villagers who once relied on Naruto would be filled with fear and uncertainty.
One reason could be that Naruto has seen too much death and destruction in Konoha. His 'godlike' state might make him think that the only way to end all the suffering is to destroy the root cause, which is Konoha. He may believe that Konoha's system is so broken that it can't be fixed and needs to be completely eradicated.