Potter Stewart's definition isn't the only one of porn -- the film industry has its own criteria, and most people are capable of forming their own judgements. My point is that subjective assessment of porn is completely acceptable. Everyone has a right to their own personal reaction to it.
My question again; if you take the sex out of it, what is there? A plot? Varying levels of degradation of women? Of men? Porn essentially shows one-dimensional women having sex with men who are also one-dimensional. I disagree with your argument that this has some sort of comforting psychosexual value. If someone needs to see a scene of a young woman being gang raped 150 times, they should be seeing a psychiatrist. Do you rule out the idea that there may be an element of addictiveness to porn, to seeing the same scenes played out with very little variation, again and again? Is the porn industry supplying a habit?
WRT porn that involves defecation '...and most of what shows up on line of that nature is not viewed by many people for masturbation purposes, more for shock value.' This is just your opinion, SGB, unless you've conducted some market research on the product and what it's used for. Can you find figures to back up your claim?
The porn industry takes the commodity view of sex and women to the nth degree, because of the exploitative practices of porn producers and because it's basically all about sex being packaged and sold. Basically, a consumer of porn has bought a sexual experience for him or herself. The idea that women are a commodity whose value increases or decreases according to how many sex partners she has had is probably not the biggest issue western women are facing today -- in some parts of the world it continues to be the case of course that women's sexual freedom is a non-starter, but this is hardly a major problem for western women, certainly not one that warrants a fix along the lines of accepting, embracing or normalising a genre that serves no useful purpose other than the expression of men's darkest fantasies and least acceptable attitudes towards their fellow human beings.