In my case, p 0 r n o g r a p h y was just a symptom of my ex's narcissism. I had never known what p 0 r n o g r a p h y was until I was married to him. And, before I was even introduced to his appetite for p 0 r n, he had already begun to display sexual perversions that I really didn't understand until many years later. I mean, erotic games is one thing, but demanding violence during sex is another!
God, but he's a sick man and I pity any man or woman that comes into contact with him. In fact, he's never been able to maintain a friendship (other than superficial) for longer than a few months. He is utterly incapable of maintaining a healthy relationship with a man, and he absolutely despises women and has used them up like snotrags since I left him, and, I believe, before I left him, as well.
Yepper, toxic people mean a toxic self, and I won't allow anyone (spouse, child, friend) to play their control games with me, again!