One possible reason could be that Sasuke is highly regarded in the village. His skills and potential are seen as valuable assets. So, when Naruto hurts him, it might be seen as a major threat to the village's future strength. Also, the village elders may be overreacting due to their long - standing distrust of Naruto because of the Nine - Tails within him.
At first, Naruto is probably shocked and confused. He might not understand why the village would take such a harsh step just for hurting Sasuke. He may feel betrayed, especially if he thought he had friends and allies in the village.
One possible reason could be his strong bond with Naruto. Their relationship has been through so much, and Sasuke might realize that Naruto understands him on a deeper level than Sakura. Maybe he feels that his journey and growth are more intertwined with Naruto's, and he values that connection more in this fanfiction.
Perhaps in this fanfiction, Yugito was involved in a political intrigue within the Hidden Cloud Village. Naruto, being an outsider with influence, banished her to maintain peace between different factions. Yugito's actions or associations might have been such that it was the only way Naruto saw to prevent a civil war or major conflict in the village.
One reason could be that Naruto finally realizes Hinata's true feelings for him. After years of her being by his side, supporting him silently, and he may have taken her for granted or even been unkind without fully understanding her depth of emotion. Another aspect could be that as he matures, he sees how his actions, perhaps his obliviousness or his focus on other things, have hurt her. It's like when you grow up and look back at how you treated someone who truly cared for you, and you feel ashamed.
Perhaps Sasuke starts to notice Ino's unique skills and how they complement his own. Ino has her mind - related jutsus which could be useful in certain missions or battles. This practical aspect, combined with a growing personal bond, might lead him to leave Sakura for Ino.
One possible reason could be his long - standing feelings for Sakura. Despite his journey and time with Karin, his original connection with Sakura might have resurfaced. Sasuke has known Sakura since they were young, and those early memories and emotions could have influenced his decision.
It could also be due to a misunderstanding. In the heat of the moment during the vote, there might have been miscommunications or false assumptions. Naruto might have thought Sasuke was going to betray them all and in his haste to prevent that, made the tragic decision to kill him.
Perhaps Sakura is in a state of extreme stress. Maybe she has a lot of pressure on her, like trying to save a village or a loved one, and Naruto's actions, which might seem reckless to her at the time, cause her to snap and hurt him without really meaning to.
Another possibility is that Naruto was trying to protect someone else from Sasuke. Suppose Sasuke was on a path that would endanger another important character in the story, like Sakura. Naruto, in his eagerness to safeguard Sakura, might have accidentally hurt Sasuke while trying to stop him from taking any harmful actions.
Fanfiction writers could use power imbalances. If Naruto has suddenly gained a lot of power and doesn't fully control it, he could accidentally hurt Sasuke. It shows the consequences of power and the need for control in their relationship.