Definitely not. This kind of so - called 'genre' is disturbing. It can have a negative impact on the mental health of readers, as it may desensitize them to violence and inappropriate sexual content. Literature should promote positive values, not this kind of abnormal combination.
No. Combining the themes of serial killers and erotica is highly inappropriate and unethical. Such content often involves glorifying violence and abnormal and immoral behavior, which goes against basic moral and ethical values in society.
In my opinion, it's not acceptable. Literature is supposed to be a form of art that enriches and elevates the human spirit. 'Serial killer erotic fiction' does not conform to this purpose. It mixes two very dark and inappropriate themes that are not suitable for public consumption or promotion in the realm of literature.