Totally bizarre.
These poor, lost children are simply a product of their environment. They have been feeding on a steady diet of secularism, relativism, and hedonism their entire lives. The idea of moral restraints has probably never entered their minds. The behavior described in the article, while bizarre and unnatural, is pretty much the same thing shown on MTV on a typical day.
If you swim all day in the sewer, you’re not going to come out smelling like roses.