For the Naruto fandom, bashing fanfiction could potentially turn some fans away from the overall fanfiction community if they feel that their beloved character is being unfairly targeted. In the case of Rias and Issei's fandoms from High School DxD, it could create a stir as well. Some fans might engage in debates with the writers of the bashing fanfiction, trying to defend the characters. This can lead to both positive and negative interactions within the fandoms. On one hand, it can spark discussions about the characters' qualities, but on the other, it can also lead to a hostile environment if not handled properly.
Some people might write such bashing fanfiction because they prefer other characters or storylines over Naruto, Rias, and Issei. Maybe they want to create a different narrative where these characters don't overshadow their favorites. It could also be a form of creative expression to explore how a story would be different without them.
It would likely have a huge impact on the plot. New alliances might form around protecting the baby. Enemies could see the baby as a threat or a valuable asset. The story could shift from their individual adventures to more family - focused ones.
Issei would most likely become more protective. He'd be constantly by Rias' side, making sure she was comfortable and safe. He might also start training even harder to ensure he could defend his family when the baby arrives. His character would grow in the sense that he'd become more selfless and family - oriented, thinking about the future of his family rather than just his own growth as a fighter.
In some cases, it could be that the author of the fanfiction simply wants to explore a different narrative where Rias is not the 'perfect' character she is often portrayed as in the main series. They might want to create a more complex or alternative view of the Naruto DxD universe by highlighting what they see as flaws in Rias's character.
He might react with hostility. Dark Naruto has a certain edge to him, and if he sees Rias as a threat or someone he doesn't like, he'll likely oppose her. He could use his combat skills to challenge her directly.
In such a fanfiction, it could be that Issei is bashed because he represents a different kind of hero compared to what Naruto stands for. Naruto is all about self - sacrifice and believing in others no matter what, while Issei is more about his own desires and power - seeking in a way. So when these two worlds collide in the fanfic, Issei might be made to look bad in comparison. Maybe the story has Naruto characters like Sasuke or Kakashi giving Issei a hard time because they don't approve of his behavior.
To avoid Issei bashing in Naruto fanfic, first, try to understand the character of Issei. Research his origin, his powers, and his personality traits. This way, you can write him in a more accurate and respectful way.
It can create some division. Those who like Sakura might be offended by such fanfictions. But on the other hand, it also gives a platform for Sasunaru fans to express their creativity in a way that suits their ship preference.
Yes, it can be common in some fandoms. In the Harry Potter fandom, for example, there are quite a few 'ron bashing fanfiction' pieces. Since the series has such a large and diverse fan base, different interpretations of characters are bound to happen. Some fans may focus on characters like Harry or Hermione more and see Ron as a hindrance in their relationships or adventures, so they write fanfics bashing him.
I'm not sure specifically about 'naruto rias bashing fanfiction' being popular. There are so many fanfictions out there that it's hard to single out ones that are bashing a particular character as being popular. However, in general, if a fan has a strong opinion about a character like Rias, they might write a story that gets some attention within their niche community, but it may not be widely known outside of that.