What really disturbed me was the conduct of the parents. If you see your child running naked from the waist down from a man with an erection, you make sure your child is safe and then you call the police without thinking twice. And if your child is a known child rapist, report them to the police, anonymously if needed.
Secondarily, I was disturbed by the implication of homosexuality as a contagion, with abuse being the vector. While homosexual boys are abused at high rates, there are other factors at play.
Lastly, being sad because your rapist left you as a child is not a valid excuse to groom a child in adulthood. That's some wild justification.