He would be extremely confused. Harry has always thought of his parents as heroes, and suddenly finding out they betrayed him would shatter his world view. He'd question everything he believed in.
There would be a great deal of anger. He might feel that all the love and respect he had for his parents was misplaced. This anger could fuel his actions in the fanfiction, perhaps leading him to take risks or make rash decisions.
Deep sadness would also be a major impact. Harry has already lost his parents at a young age, and now to find out they betrayed him would add a whole new layer of pain. He might isolate himself from others as he tries to deal with this complex and overwhelming emotion.
Well, perhaps in the fanfiction, it shows that Harry's parents made a deal with Voldemort before their deaths. They promised to hand Harry over in exchange for something, like power or protection for themselves. But then things went wrong and they ended up dying, still leaving Harry feeling betrayed as he discovers this truth later. It could also be that his parents were actually working against the Order of the Phoenix all along and Harry was just a pawn in their real plan.
One possible reason could be that he might feel abandoned. Growing up without them, he could resent the fact that they left him an orphan. He might think that if they were really so great, they would have found a way to survive and be there for him.
Harry could experience a profound sense of isolation. In the original story, his parents' love was like a shield. Without it, he would be more vulnerable emotionally. He may struggle with feelings of worthlessness and may have to search hard for a sense of belonging. This could lead him to make some hasty decisions in his quest for acceptance, either by trying too hard to please others or by distancing himself from potential sources of love out of fear of being rejected again.
One possible reason could be a misunderstanding. Maybe he discovers some secrets about his parents that he misinterprets. For example, if he finds out they were involved in some dangerous or morally ambiguous activities in their youth that he doesn't fully understand at first.
One possible reason could be that he discovers some long - hidden family secrets that make him question his parents' actions or decisions. Maybe he finds out about some dark deeds in their past that he can't overlook.
Maybe they were forced into it by some dark magic or a powerful dark wizard. They could have been blackmailed into betraying Harry to save their own lives or the lives of others they cared about.
It could be that his parents were trying to protect Harry in a really messed - up way. They might have thought that by 'betraying' him, like sending him away or making him seem like an outcast, they could keep him safe from a much greater threat. Maybe they knew some prophecy about Harry and thought this was the only way to ensure his survival. They might have made a deal with some dark force, believing they could outwit it in the end but ended up being seen as traitors by Harry and others.
In some fanfiction, the idea of Harry Potter being betrayed by his parents might be justified through a complex web of magic and prophecy. Maybe the parents thought sacrificing Harry was the only way to save the wizarding world from a greater evil. However, this goes against the essence of their characters in the original books.
He would probably be very confused and heartbroken at first. He might isolate himself from others as he tries to make sense of what has happened.
One possible impact is that it can increase the quantity of fanfiction. With new ideas from the accelerator, more fans will be motivated to write. Another impact could be on the quality. New concepts might lead to more complex and interesting stories. For example, if it introduces a new magical power, fanfiction writers can use it to create more engaging plots.