You nailed it, Tim.
Intimacy substitution (porn, fantasy, etc) will only grow as children are now brought up in a world where person to person access options grow and bridge the gap of actual person to person contact.
I knew for myself and others that intimacy (or the substitution of) was a key issue in acting out.
It was not until your post that I realized how far reaching that will be and how we are set up for it to become a societal norm.