In fanfiction, Naruto could snap at Minato due to the pressure he feels. Naruto has his own ideals and goals for the village, and if he feels that Minato's legacy or the way Minato is revered in the village is somehow hindering his own path or the changes he wants to make, he might lash out. He may think that Minato's actions, while heroic in the past, are now holding the village back in a modern context.
One possible reason could be for Naruto's protection. Maybe Minato knew of some great danger that was coming for Naruto and he thought that banishing him would keep him out of harm's way. Another reason might be related to some prophecy or hidden power within Naruto that Minato feared could be misused if Naruto stayed in the village.
One possible reason could be miscommunication. Maybe Naruto misunderstands something Team 7 members say or do. For example, if they seem to be excluding him from a plan without a good explanation. Another reason might be stress. Naruto has a lot on his plate, and if Team 7 accidentally adds to his burden in the fanfiction, he could snap. Also, personal growth differences. If Naruto is growing in a different direction than the rest of Team 7 and they don't understand or support him, it could lead to him snapping at them.
Perhaps Boruto disrespects the ninja way that Naruto holds so dear. In fanfiction, Boruto could be shown as being too rebellious, and Naruto, as a firm believer in the ninja values, would snap at him to correct his behavior. For example, if Boruto were to shirk his training or mock the importance of teamwork, which are fundamental to Naruto's view of being a ninja.
Perhaps continuous disappointment. If all his efforts to bring peace and unity were constantly thwarted, like his attempts at forging alliances between different ninja clans being undermined time and again. This build - up of frustration might lead him to snap and decide to leave in search of a new way or place where his ideals could be realized.
One possible reason could be fear. If Naruto was 'godlike' in this fanfiction, his power might be uncontrollable and Minato, as Hokage, might feel it's a threat to the village. He could think that Naruto's power could attract too many dangerous enemies or cause destruction accidentally.
One possible reason could be a misunderstanding. Maybe Naruto is somehow influenced by an enemy's jutsu that makes him see Minato as a threat. For example, if an enemy uses a genjutsu to distort Naruto's perception of his father.
One possible reason could be a misunderstanding. Maybe Naruto gets involved in some dangerous situation and they disagree on how to handle it. For example, if Naruto wants to take on a powerful enemy alone but Minato and Kushina think it's too risky.
In fanfiction, Naruto might snap at Konoha if he feels betrayed by his friends or the village. For example, if they don't support him when he tries to make important changes or if they side with someone who has wronged him. Also, if the village starts to become too controlling or authoritarian in the fan - created story, Naruto, with his free - spirited nature, would likely snap.
Perhaps there were secrets in the family that Naruto discovered. In fanfiction, it's common to introduce hidden family secrets. If Naruto found out something like his family having a connection to an old enemy or some dark past, he could be angry and snap at them.
One possible reason could be that Naruto might feel Jiraiya is being too overbearing in his training methods. In some fanfictions, Jiraiya might push Naruto too hard without considering his emotional state, leading to Naruto snapping.