In the original Naruto, there is a clear narrative of growth through combat and self - discovery. However, in this fanfiction, the narrative would be more centered around domestic and relationship issues. There would be less emphasis on ninja skills and more on how Naruto manages his new relationships with all these women and the children they bear. It would be a completely different kind of story with different themes and conflicts.
Well, in the original Naruto story, Naruto is mostly seen as a hero or an underdog trying to prove himself. But in this fanfiction, he is feared. This is a huge deviation. The original Naruto is all about friendship, hard work, and believing in oneself. In the fanfiction, it seems to focus more on the negative perception of Naruto, which changes the whole dynamic of his character relationships.
The character dynamics are likely to be very different. In the original, Naruto is seen as an underdog trying to gain recognition. As a monster in the fanfiction, he might be feared or shunned, which is a huge departure from the original story where he gradually earns respect through his hard work and determination.
The original Naruto story doesn't depict Naruto as bipolar. So in this fanfiction, it's a major deviation. His stable and determined character in the original is replaced with a more erratic one.
In the original story, Naruto loves ramen. It's a big part of his character. So in this fanfiction, it's a complete opposite. It changes the fundamental aspect of his relationship with food.
The original Naruto story has a set of rules regarding the nature of chakra, ninjutsu, and the relationships between different species and entities. In the 'naruto impregnates kyuubi fanfiction', all these rules are thrown out the window. It's a huge deviation as it brings in a concept that is not only inappropriate in the context of the original Naruto story but also changes the fundamental understanding of the characters and their capabilities. For example, the Kyuubi is no longer just a source of power for Naruto but is now involved in a very different kind of relationship that was never even hinted at in the original series.
The original Naruto story shows Minato as a hero and a loving father. In fanfiction with abuse, it completely goes against this. It changes the core relationship between Minato and Naruto.
The original Naruto story is about ninja adventures, friendship, and Naruto's growth. The fanfiction you mentioned involves inappropriate and non - canon sexual themes which have no place in the original Naruto universe. It completely changes the nature of the story and the characters.
In such a fanfiction, one possible consequence could be a major shift in the Naruto universe's social structure. With so many pregnancies, there would likely be a need to reevaluate how families are supported, and how the Hidden Villages would deal with a sudden population boom. It could also lead to complex relationship dynamics among the characters, as Naruto would have to handle his newfound responsibilities towards all these women and children.
The obvious deviation is the physical transformation of Naruto into a catgirl. In the original story, Naruto is a male ninja, while in the fanfic, he takes on a more feminine and feline form. This changes his appearance and likely his movement and behavior as well.
It would likely cause a great deal of controversy. Some fans might be outraged as it goes against the traditional view of the characters. Others might be intrigued by the novelty of it. But overall, it could split the fandom between those who are open to such extreme interpretations and those who firmly believe in sticking to the original essence of the Naruto story.