I do think this is a major part of the problem: Prayer is the cure, because the source of the wrong is temptation (probably from demonic sources) and "sin." But "sin" is a useless measure; it doesn't track with our laws on, you know, sexual crimes. It is both broader and more restrictive, since women have no real choice but to submit to their husbands and sin encompasses sexual behavior that is constitutionally protected from government regulation, with consent being the key measure. But many Christians are like the Duggars and
regard marital rape as unbiblical. And of course they counsel the parties involved to seek pastoral guidance, preferably not law enforcement.
I also do not think it is appropriate to describe this as "unintentional." They do not intend to do any harm and in many cases believe that they are not doing harm, but they engage in these acts with full knowledge of what they are doing, however colored it is by their religion. They are simply rejecting secular beliefs, norms and sometimes laws.