Earlier quoted context omitted.
> However, he paints the picture that porn has been with our society forever and that its effects are known and tolerable. I would argue that its widespread availability is an extremely novel phenomena and that its effects are unknown and likely harmful. You haven't clearly defined what you mean by harmful. Does it ruin otherwise healthy relationships on a massive scale? Does it teach impressionable young men that al…
>"Porn is widespread enough that you'd expect the large-scale statistical effects to be manifest." There is certainly a modern syndrome around the nexus of sex, relationships, and family (less stable relationships, fewer children raised in stable homes, fewer children, more sex, more sexual culture, technology that lowers the cost of sex, easy access to porn). It's hard to know which pieces of the syndrome are causes…
More equality for women? That has improved. Access to abortion? That has improved? Domestic abuse and assault in sexual relationship? Are there any good statistics on these trends? Courts upholding child support agreements with force of law. Don't pay your child support and see what happens.
The reason something may appear broken with modern relationships is the fact we are looking at them thru historical perspective, when it was much less likely a person could survive and raise children while not married. The fact is so many things have changed (at least in the U.S. where I am) in the last 50 year the chain of causality is likely impossible to unwrap.