You can consult all the experts you like, write reports, make studies, etc., but the fact that pornography corrupts likes within the common sense of everybody. If people are affected by their environments, by the circumstances of their lives, then they certainly are affected by pornography. The mere nature of pornography makes it impossible that it should ever effect good. Therefore, it must necessarily effect evil. Even a fool has the sense to see that someone who wallows in filth is going to get dirty. This is intuitive knowledge. People who spend millions of dollars to try and prove otherwise are malicious or misguided, or both.