Religion itself is abusive. Your present life is devalued in favor of some future reward, and you are supposed to sacrifice something to make it into that "paradise". People see others not making those sacrifices, and part of them is impelled to want that person "saved" at all costs. They are then hounded to join the religion. Of course, you are obligated to bring up your children in that religion so they will not go to hell or die at Armageddon--so they are indoctrinated to believe that natural things are in fact dirty.
This suppression, plus that people are supposed to wait for a decent life, makes it that much easier to abuse other people. This includes pedophiles, as well as physical and verbal abuse. Very common are spankings and beatings, along with threats of the same or hell threats, for doing things that are not really bad for themselves or society. You also see parents making up lies about how these things are bad for them, when they are not. And it is not just children that get abused--nations go to war to keep their religions dominant in their country.