One possibility could be that Harry is under some dark magic influence. Maybe he's been corrupted by a powerful and evil spell or artifact that makes him lose his sense of right and wrong, leading him to turn on everyone. Another aspect could be that he's been betrayed so deeply by those he trusted that he snaps and decides to take revenge on everyone, believing they are all against him.
In this fanfiction, it could start with a great tragedy that befalls Harry. For example, he might lose all his friends and loved ones due to a series of events that he blames on the wizarding world at large. This overwhelming grief and anger could drive him mad. He may start to see everyone as the enemy, and with his powerful magic skills, he decides to go on a killing spree. It could also be that there is a prophecy that he misinterprets which leads him to believe that killing everyone is his destiny.
Well, perhaps in this 'harry kills everyone fanfiction', there is an alternate reality where Harry has a different upbringing. He might grow up in a more hostile environment that warps his personality and values. He could be part of a group that has extreme views and they convince him that the only way to bring about change or gain power is to eliminate everyone who stands in his way.
In such a fanfiction, it could be that Harry Potter has been corrupted by a powerful and malevolent force. This force might have warped his sense of right and wrong. It could also be that the author wants to explore the extreme consequences of power and how it can turn a hero into a villain. For example, if Harry Potter was constantly taunted and mistreated by the wizarding community despite all he has done, he might reach a breaking point and lash out at everyone.
Yes, it is quite disturbing. Harry is typically seen as a hero, and the idea of him killing everyone goes against his fundamental character. It subverts the positive and heroic image that fans have of him, and it involves a lot of death and destruction which is generally not pleasant to think about.
Probably not. Given that the Harry Potter series is mainly about positive values like friendship and fighting evil, a fanfic where Harry kills everyone goes against those values. It's likely to be a very dark and disturbing story that may not be suitable for all audiences, especially younger fans who are used to the more positive and heroic image of Harry.
One possible plot could be that Naruto is somehow corrupted. Maybe he's been influenced by a powerful dark force or a powerful enemy has tricked him into believing that everyone is a threat to the world he wants to protect. So, he decides to take extreme measures and kill everyone to 'create peace' in his warped sense.
Well, it could be a very dark and alternative take on the Harry Potter universe. Maybe it's a fan - created story where the character Harry, for some extreme reason like being corrupted or in a very different version of events, decides to kill everyone. But this is quite a departure from the original story's themes of friendship, love and fighting against evil in a more heroic way.
In some interpretations, it could be that Harry finally snaps after years of abuse from the Dursleys. Maybe they pushed him too far one day and in a fit of rage, he uses his magic to end their lives. It's a very dark and extreme take on the Harry Potter universe.
It completely goes against the character of Harry Potter in the original story. In the original, he is a hero who stands for good and protects his friends and the wizarding world. But in this fanfiction, he becomes a mass murderer, which is a huge subversion.
One possible plot development could be that Harry kills Umbridge in self - defense. Maybe she attacks him first with the intent to harm or kill, and Harry has no choice but to use lethal magic in return. This would then lead to a huge uproar in the wizarding world, with some believing Harry was right and others seeing him as a murderer.
It could start with a build - up of small incidents. For example, the Dursleys constantly belittling him even after he has proven himself in the wizarding world. Then, one major event, like the Dursleys trying to sell his magic items or preventing him from going back to Hogwarts, causes Harry to snap. His killing of the Dursleys could then lead to a search for redemption or a fight against those who want to punish him unjustly, as he was pushed to his limits by their cruelty.
Maybe the goblins in the fanfiction have turned evil and are causing great harm to the wizarding world. Harry, seeing no other option, decides to take matters into his own hands and kill them to protect others.