I think the point is that there must have been previous problems with your life in order for you to become addicted to porn, not that porn is not a cause or not the primary factor contributing to your symptoms. I imagine it's hard to become a porn addict if you're a healthy individual with a happy life. Your brain is queued to use porn whenever faced with emotional distress, so being active and having other ways to deal with stress will naturally reduce your need for porn. PA exacerbates your original problems, so whatever deficiency you likely have that caused you to become a serious porn addict probably still exists. For example, children from divorced or single-parent households are far more likely to become drug addicts than children from two-parent households, so the porn or the drugs may be the immediate cause of the problems you're dealing with, but probably not the original cause.