Exactly. Many of the ANTI-DW posters on here won't admit it, but many of them have HBO,SHOWTIME,CINEMAX, and if they have a Satellite DISH they can have SPICE,EXXXSTASY, and so on. NO, they don't COLLECT PORN, they just watch it. Can't get them because there is no material evidence.
Most people won't admit it but PORN is what funded the growth of the INTERNET.
NOW, back to your point. DW had so many NORMAL, ACTIVE interests that to think that WATCHING PORN would be a PRIMARY activity, one that would alter his mental functions, his life-long moral attitudes, and turn him into a mentally deranged child murderer is, in itself, insanity..