How does Harry's berating of Hogwarts education in fanfiction affect the other characters?

In fanfiction, the author might want to explore a different side of Harry. He could be berating Hogwarts education because he realizes that some students were left behind. There were students like Neville who didn't really shine until later, and Harry might think that the school system should have been more inclusive and better at nurturing all types of magic abilities from the start.

Their relationship with Ron might be strained. Ron could feel abandoned and betrayed as he is left behind. He might initially be angry with them for leaving without him, but later come to understand their reasons.

His relationship with the teachers might become more complex. Some teachers might respect his newfound authority over the wards, while others might be wary. For example, Snape might be suspicious of Harry's intentions.

His anger might make some students distance themselves from him. They could be afraid of getting in trouble just by being associated with him. But on the other hand, it might also draw some students closer to him. Those who feel the same way about the staff's actions or who believe in Harry's cause would support him.

The teachers would also be concerned. Dumbledore might try to have a deep conversation with Harry to understand his motives. Some teachers might see it as a sign of weakness or that they have failed in some way to make Hogwarts a comfortable place for Harry. As for his enemies, they might see it as an opportunity to strike while he's vulnerable.

If there was a rivalry before Hogwarts, it could carry over and make their interactions at Hogwarts more tense. However, this could also lead to them pushing each other to be better. For example, in Quidditch, if Fleur is also a good flyer, Harry might strive to outperform her, which could improve his skills as a Seeker. And over time, this rivalry might turn into mutual respect.

It might make them feel hurt or confused. If they were close to Harry, his sudden departure without a goodbye could make them wonder if they had done something wrong or if he didn't care about them as much as they thought.

The Weasley family as a whole would be affected. Molly Weasley, being a motherly figure, would be heartbroken for Ginny. Arthur might be more practical and try to offer advice to both Harry and Ginny. The other Weasley boys might have different reactions. George, still dealing with Fred's loss, might see Ginny's pain and be reminded of his own grief. Percy, who has always been a bit of an outsider, might try to use this as an opportunity to bond more with Ginny. As for the Hogwarts students, it could cause a stir among those who looked up to Harry and Ginny as a couple. Some might take sides, while others might be disappointed in the end of what they thought was a perfect relationship.

It can make other characters view their relationship as very exclusive. For example, Ron might feel left out sometimes if Harry is constantly overprotective of Hermione. This can create some tension between Ron and Harry in the fanfiction.

His friends like Hermione and Ron would be deeply affected. They might feel abandoned at first. Hermione, being the logical one, would understand his reasons but still miss him terribly. Ron would probably be more vocal about his sadness and might even try to convince Harry to come back.