Use proper filters on your devices and browsers. For example, most browsers have parental control or content filtering options that can block adult - related content.
Yes, they should be banned. Such novels often contain inappropriate and unethical content that has no positive value. They can corrupt the minds of readers, especially the vulnerable ones like children and teenagers.
However, in some works of literature that deal with complex human nature and social problems, sexual content may be mentioned in a more euphemistic and meaningful way to serve the overall theme, but this is very different from extreme and inappropriate sex stories. For example, in some novels that explore the dark side of society, a bit of sexual description might be used to show the decadence of a certain environment, but it is always within the framework of art and morality.
These comics usually have very bold and provocative imagery, emphasizing extreme levels of sexual pleasure. They may explore unconventional or extreme scenarios related to sexual climax.
Another negative impact is on the social environment. If such extreme content is widespread, it can lower the overall moral tone of society. It may make people more desensitized to inappropriate behavior and undermine the values that uphold a harmonious and respectful community.