Some fans might be disappointed. Fanfiction often allows them to explore different scenarios with Naruto's character. If he gives it up, it's like closing a door on those creative possibilities.
The Naruto fandom would likely be very divided. Some fans would be extremely outraged as it goes against the core values and character of Naruto. They might condemn such a fanfiction.
The Naruto fandom would probably react very negatively. Fans are used to seeing Naruto as a hero, a symbol of hope and growth. A fanfic that portrays him as a slave goes against the very essence of what Naruto represents. There would be a lot of criticism on social media platforms, and many fans might even call for the fanfic to be removed or boycotted.
The Naruto fandom would likely be very divided. Some fans might be intrigued by this unique and unexpected plot twist, seeing it as an interesting exploration of an alternate Naruto universe. However, many fans would probably be quite shocked and even appalled, as it goes against the traditional understanding of the characters and the series.
On the other hand, there would be fans who would welcome it. Maybe they never liked the pairing in the first place or they think it adds an interesting twist to the story. They could start exploring new relationships for both Sasuke and Sakura in their own fan - created stories.
Sasuke would probably be a bit dismissive at first. He'd think Naruto was being childish, but deep down he might be a little curious. Sakura would likely be more understanding. She might encourage Naruto to share more about Megaman, thinking it's a harmless interest. Shikamaru, on the other hand, would just roll his eyes and say it's too troublesome for him to care about Naruto's new fandom.
There would be a portion of fans who are very against it. They are so used to the idea of Sakura and Sasuke being a potential couple that any deviation from that would seem wrong to them. They might feel that it goes against the 'canon' in a way, even though it's a fanfic.
Some fans might be really sad about it. They love the idea of Sasuke and Sakura together as a couple and see their relationship as a symbol of hope and growth. So, divorce fanfiction goes against their ideal view of the couple.
Sakura might find it a bit odd at first. She'd probably tease Naruto a little about it, but then she'd see how passionate he is and just let him be. Shikamaru, on the other hand, would be like 'too troublesome' but secretly be a bit interested. Choji would probably just laugh it off and ask Naruto if he could share some of his Spider - Man comics if he had any.
It gives fans a chance to explore different 'what - if' scenarios. By seeing the Avengers' reactions, fans can get a deeper understanding of the characters.