Even those classes of people include people who don't deserve it, given the extent of crimes that fall under those labels. Consider a parent being charged with child abuse for letting their child play alone outside, much like parents of old. Or consider cases that fall right outside the limits of Romeo and Juliet clauses.
I don't think the comment meant "child [abusers or rapists]" but rather "[child abusers] or rapists". i.e. those who either are [abusers of children], or are [any kind of rapist].
Know what else is barbaric and horrible? The crimes some of the "slaves" commit