People who fantasize about being a child in the situation.Logically who else would it appeal to?
Loli is just virtual pedophilia.
People who get off to weird or taboo material regardless of subject.
People who think 16-17 year olds are fine even though they are underage.
People who insist there is a good story in there.
People with overly broad tastes.
At least I hope so. Or a apparently a lot of people are into incest.
You should maybe read some before claiming that."rape fantasy" ie they actually find the guy sexually attractive, I doubt they fantasise about some random ugly dude in an alleyway.