I remember reading about a study that showed looking at boobs raised men's self esteem. There is also a study that showed that apes (or monkeys or some animal like that) likes to pay for porn (ape/monkey porn of course).
Also the sex drive is quite important for the human species. It's a huge motivator.
Yes but out in the wild, even with monkeys watching other monkeys, sex is a social activity; watching porn alone makes it a very non-social activity.
This discussion reminds me a bit of the "sugar/fructose" discussion the other day. Humans are built to crave sugary, high-calorie food. Modern society allows for an endless supply of sugar. Cue rampant obesity.
I think it's beneficial to question everything; to completely detach oneself from the hivemind. Just because everyone watches porn (or it provides short-term positive benefits) does not mean it's innately good, or could/should be consumed in endless quantities, or has no negative implications.
Also the sex drive is quite important for the human species. It's a huge motivator.