Any guy who does this was sick to begin with. He might be blaming porn for his behavior, but that's just his way of holding himself blameless.
He needs severe punishment so he never even thinks of abusing a woman again.
Second offense, firing squad or sword.
Sorry, but you're wrong there. Porn has a huge affect on a person's personality and their treatment towards other people. I have seen people change after they became addicted to porn.