Yes, there might be. You can try searching on fanfiction websites like Archive of Our Own or FanFiction.net. There are a large number of fan - created works out there, and with the popularity of Naruto and the Justice League, it's quite possible that someone has combined the two in a 'godlike' way in their fanfiction.
Maybe Naruto's character essence is so different from the Justice League that he seems out of place in that fanfiction context. His ninja world values and his own story arc are unique to his universe, and being mashed into Justice League fanfic just doesn't feel right to some people, and perhaps that's how the idea of 'Naruto hates Justice League fanfiction' comes about.
Naruto would fit in by being the energetic and determined member. His loud and boisterous personality would contrast with some of the more reserved members of the Justice League. His physical abilities, like his superhuman strength and speed gained from his ninja training, would make him a valuable addition in battles.
In this fanfiction, Naruto might use his ninja skills. His shadow clone jutsu could be a great asset. He could send clones to gather information about the threat the Justice League is facing. Then, with his Rasengan, he could directly attack powerful enemies. Also, Naruto's ability to endure and keep fighting could inspire the Justice League members when they are in a tough situation.
Naruto's strong sense of justice and his will to protect his friends and village are qualities that would make him a great addition to the Justice League. He could relate to Superman's desire to protect the world and Batman's commitment to justice. Also, his growth as a ninja could be paralleled with the growth of the Justice League as a team, learning from each other's experiences and skills.
Another theme is power dynamics. Naruto is a powerful ninja, and the Justice League members also have their own superpowers. In the harem scenario, the power balance between them is constantly shifting. Sometimes Naruto might be the dominant one in a situation, while other times, a Justice League member's power might come to the fore. It makes for some exciting plot developments.
No, there's no real evidence. It's just a concept that might have emerged from fans who are purists about Naruto's world. They might think that Naruto belongs only in his own ninja - themed story and not in the world of Justice League fanfiction. But it's not like there are any statements from the Naruto creators or the story itself to prove this 'hate' relationship.
One possibility is that Naruto's unique ninja skills would add a new dimension to the Justice League's combat capabilities. His shadow clone jutsu could be used for various strategic purposes, like scouting or creating diversions. His rasengan could also be a powerful offensive weapon against super - villains. Also, Naruto's strong sense of justice and his never - give - up attitude would inspire the other members of the Justice League.
Common themes in 'killer naruto justice league fanfiction' include the exploration of cultural differences. Naruto comes from a fictional world with its own culture and the Justice League is from a different set of fictional worlds within DC. This can lead to interesting scenarios where they misunderstand each other at first. Another theme is power scaling. How does Naruto's power level compare to the likes of Superman or Batman? And how do they deal with threats that require both Naruto's unique abilities and the combined might of the Justice League? Also, the theme of friendship and alliance - building between Naruto and the Justice League members can be quite prominent as they learn to trust and rely on each other in the face of various challenges.
Naruto could be like a new and unique member. His ability to use ninjutsu would be a fresh addition. And the Juubi could be a power source or a danger they have to deal with. Maybe Naruto uses his skills to help the Justice League understand the Juubi better.