I am convinced, based upon both cultural observations and the research I've read, that porn addiction isn't real or is very uncommon and most of these people are so traumatized by their Christian Fascist upbringing that they have a pathological terror of their own more or less normal sexuality and sexual function. They're so warped by purity culture and christianity that they've convinced themselves en masse that normal biological functions and behaviors are evidence of something seriously wrong and then come up with some impressively maladaptive behaviors to cope.

Among other evidence is American's centuries long obsessive campaign to stop men from masturbating. If you know about the many, many bizarre psuedoscientific efforts to stop men from masturbating in the history of us christianity the whole nofap/porn addiction industrial complex looks like a natural outgrowth of that trend once it hit the internet's potential for generating insular cults and mass delusion.