Well, initially his friends in Konoha would be horrified. Naruto has always been a symbol of hope for Konoha. But if he became the Akatsuki leader in a fanfiction, they would start to question everything. However, as time passes, they might start to see the positive changes Naruto is trying to bring to the Akatsuki. For instance, if Naruto is using his godlike powers to stop the Akatsuki from their more evil plans and instead make them a force for good, his friends might gradually come around. But it would be a long and difficult process, filled with a lot of mistrust and misunderstandings at first.
He would be devastated. Naruto has always considered Konoha his home and the people there his family. At first, he might not believe it, thinking it's all a misunderstanding. But as the truth sinks in, he would probably be filled with anger and sadness. He might leave Konoha, but his sense of justice wouldn't let him just forget about the betrayal. He could seek revenge on those who wronged him, or he might try to prove his innocence from afar.
If Naruto became the leader of the Akatsuki in fanfiction, it would completely change the dynamics of the organization. He might try to reform it from the inside. Instead of the Akatsuki's original goals of chaos and destruction, Naruto could steer them towards more positive ends, like using their power to protect the weak or broker peace between the ninja villages.
Well, a fanfiction with Naruto as a godlike leader of Akatsuki would be full of interesting twists. First of all, Naruto's strong sense of justice would clash with the Akatsuki's original motives. But with his godlike powers, he could enforce his new vision. For example, he might use his power to create a truce among the warring ninja villages. His relationship with the other Akatsuki members would be complex. Some might follow him out of fear of his power, while others might truly believe in his new way. And his battles would be epic, as he could use his godlike abilities to take on any enemy that stands in the way of his new Akatsuki's mission.
There might also be a sense of self - doubt. Naruto may start to question his own judgment. He thought his friends were true to him, so the betrayal could make him wonder if he was wrong about them all along. He might also doubt his own worthiness as a friend and leader, which could have a long - term impact on his self - esteem.
Naruto would be devastated. He has always considered Sakura as a dear friend and teammate. He would probably try to convince her to come back at first. If that fails, he might see it as his mission to bring her back by force if necessary, believing that she has been led astray. Sasuke, on the other hand, might have a more complex reaction. He has his own issues with Konoha, so he might understand Sakura's desire to leave on some level, but he would also be suspicious of her motives for joining Akatsuki.
Naruto would probably be conflicted. On one hand, he has a deep love for Konoha, his home. But on the other hand, he might have been hurt by the past events that led to his departure. He could initially be hesitant, but eventually be swayed by the thought of seeing his friends again.
Sakura would be furious. She's always been protective of Naruto in the original Naruto series. In the RWBY fanfiction, she would probably start her own investigation to find out who was behind the betrayal. She might even challenge the RWBY characters if she thought they were involved. Kakashi, on the other hand, would be more calm and collected. He would try to analyze the situation rationally and figure out the best way to help Naruto.
Sakura might be initially surprised but would probably be supportive. She has always cared about Naruto's happiness, so as long as he is happy with the elf, she would be okay. Kakashi, on the other hand, would likely be intrigued. He's seen a lot in his life, but an elf - ninja union would be something new. He might offer some sage advice based on his own experiences with different cultures.
Kiba would probably be shocked. He's Naruto's friend and also has a connection to Hinata. He might try to convince them to stay, saying things like Konoha needs them. But once he realizes they are determined, he would support them in his own way, like promising to visit them. As for Lee, he would see it as a very brave decision. He would be inspired by their courage to step out of their comfort zone and start a new life elsewhere.
Shikamaru and the others from the Rookie 9 would be shocked. They have always counted on Naruto to be there in Konoha. They would probably feel a sense of loss and also a bit of guilt, wondering if they could have done something to prevent Naruto from getting so tired of the village. They might try to find ways to get him back, while also respecting his decision if he is determined to leave.