No. It is completely unacceptable. Incestuous relationships are not tolerated in society, and this goes against the basic moral principles that the Naruto series also upholds in its normal storylines. It is a very abnormal and inappropriate concept.
This is a very strange and unethical concept in the Naruto universe. In the official story, such a situation would never occur as it goes against basic moral and family norms. Fanfiction like this often plays with extreme and inappropriate ideas, but if we were to hypothetically consider it, it would completely distort the relationships and values within the Naruto world.
This kind of fanfiction distorts the essence of the Harry Potter story. The story is mainly about Harry's growth, his adventures at Hogwarts, and his fight against Voldemort. Such an abnormal relationship completely goes off - track from the main themes. It also misrepresents the characters. Harry is a heroic figure with his own values and goals, and this kind of relationship imposed on him is a slander of his character.
The idea of Harry Potter marrying his mother is a very strange and inappropriate concept that goes against the basic ethics of the story. Moreover, if it involves 'lemon' (which usually implies adult or inappropriate sexual content), this is completely unacceptable in the context of the Harry Potter fandom. Such fanfictions should not exist.
There should not be such a fanfiction in the normal sense because it involves extremely inappropriate and unethical content. In the 'Harry Potter' series, the relationship between mother and son is a fundamental family bond that should not be distorted in this way.
In fanfiction, Naruto might show his love for his mother through his memories. He could constantly recall the little time he had with her. For example, he might remember any advice or lullabies she gave him. These memories could fuel his actions, like when he faces difficulties, he might think about how his mother would want him to be strong and persevere.
One possible reason could be a misunderstanding. Maybe some false information was spread about his mother, making Naruto believe she had abandoned him. Another reason could be related to the secrecy around his mother. If he grew up feeling alone and not knowing about her, he might develop resentment.
In some fanfictions, Naruto might be made to hate his mother because of a misinterpreted prophecy or a false belief that she abandoned him. Maybe the author wants to create a more complex and angsty story line for Naruto.
It could be Sasuke's sister, if there was one in the fanfiction world. She might share some of Sasuke's traits but also have her own unique personality that attracts Naruto.
Well, first of all, it violates basic family values. Family members are supposed to have a non - romantic relationship. In the Naruto world, there are strong bonds of friendship and comradeship, and this concept of Naruto marrying his sister completely goes against that. It also sends a wrong message to the readers or fans, especially younger ones who look up to the Naruto series. It's not in line with the positive, healthy themes that the original Naruto story promotes.