There should be a distinction made between porn, and the otherwise artsy world of erotica where lines between what has cultural value and what doesn't become blurred.
Nowadays, pornography is pure exploitation. These are films made purely for the purpose of stimulating the viewer, through acts of fantasy. In the 70's and 80's porn was more story driven, to the point it had many qualities which you could find in traditional filmmaking and for the most part, it was about the fun that comes with sexual freedom even bordering on romantic drama at times. There were nasties featuring BDSM, rape fantasies and incestual themes as those produced by Phil Prince of Avon Studios, but these were by and large not well known. You couldn't watch porn in the comfort at your own home in the days before VHS, you had to go to scuzzy theaters and jerk off in public such as in the infamous 42nd street district of New York.
Over time it came to increasingly focus on the act, rather than the context around it. Audiences started to seek extremes more regularly, and by the time the internet came around there was a distribution method which could not be beat. Anybody can explore themselves sexually online through pornographic means and be exposed to unique perversions, and nowadays it is just mainstream and expected of people to have a fetish of some kind. Not only men, but women too. I could not count the amount of girls I have talked to who have a rape fantasy. But, i'm getting off track. There is a distinction between pornography, and stuff like artistic nudes, erotica films, paintings of naked ladies etc. I pity anyone who can't look at the human body without thinking of jiggling flesh and inserting phalluses into holes, there is a beauty in both the female and male forms in its many variants. I do think porn has played a large role in shaping how we see the opposite sex, but it goes both ways for either genders when such niche interests as femdom and cuckolding husbands exist.
To me it just boggles the mind that a woman nowadays would consider a ******* or anal too extreme to a point it will destroy relationships, when alt sex communities like Fetlife have become mainstream and display the social life of everyone on it and their deepest, darkest fantasies for all the world to see, which if you have not been exposed to is eye opening to the extreme. An understanding refusal is fine, but an immediate condemnation of their partner isn't just unless there is a significant amount of pressure on them to do it. Whilst love is deeply important part of a relationship being able to satisfy your partner sexually is undervalued sometimes, I think it becomes more of a question of looking at the institution of marriage and suitability of partners for one another rather than immediately blaming pornography for all of these social ills, to me it is a knee jerk reaction that downplays the complexity of the issue.
