Well, that's because some people fantasize about it happening to themselves. That's why in these stories we always focus on the victim and their perspective. This doesn't mean that they would really want to become a victim, in fiction you have full control over what happens, that's why it's just a fantasy. It's a kind of kink, where you play pretend with partner but in this case the consent is between the author and the reader, and the layer of fiction and game is already in the fact that these things are not real. Sometimes it is linked with masochism as well.
That said, it's perfectly okay to be uncomfortable with it. Even people with this kink often have mixed feelings and discomfort over fiction like this. It is complex topic to be fair. I hope this little explanation has satisfied some of your curiosity about why people might be interested in such content.
You have explained it so articulately.
You welcome, have nice day (●'◡'●)ﾉ
i truly don’t understand how anybody could get off to something so evil. my curiosity has cursed me again -1.