I think people sometimes overanalyze porn simply because it makes them personally uncomfortable. Certainly there are those who have problems in interpersonal relationships who use porn. Some who have such problems because of porn. But I strongly suspect most of those individuals would have similar problems even if all nekkid-lady websites disappeared tomorrow.
I do think there needs to be some understanding on the part of the porn consumer that such materials are fantasy, and often idealized. There are definitely teenage boys, to use one example, who have literally never seen a naked woman's body other than a porn model or porn star, with all the airbrushing, plastic surgery, soft lighting, etc., that goes along with that. I certainly know of cases where guys like that are HORRIFIED the first time they see an actual woman naked, with her stray body hairs, moles, sags, scars, flab, whatever. Women, being in general less visually focused, don't tend to fixate as much on a "perfect" male body image, but both genders fixate on an unattainable ideal of female "perfection," which can lead to great dissatisfaction with reality.
I remember my brother-in-law telling my nephew, when he discovered my nephew was cutting out the pictures of naked women in beaver mags and folding them back so he could look at only the genitalia: "Um, you do know you're gonna have to deal with more of the actual woman than that, don't you?"
There is certainly porn I find arousing, much porn I find personally disturbing, but the majority just leaves me cold. I'm not a urologist, why would I want a closeup of a woman's urethra?
But porn in and of itself is neither "bad" nor "good." (It can certainly be high quality or poor quality, I'm talking about making moral judgements.) I agree with Kip on the food analogy. Just because there are people who become addicted to foods, who overeat or eat exclusively unhealthy foods, doesn't make the Food Network evil.