It strikes me that we're already addicted to it. I suspect if you totally deprive a person of it, they'd probably become suicidal.
Could be. A friend of mine (now deceased) who looked a porn daily would get seriously depressed whenever his computer would break down and he couldn't look at it. He felt like crap and lost interest in other things. But when he had his fix of porn every day, then he was back to being happy again. Porn truly is addictive...for some people. Others can indulge in it from time to time and that is as far as it goes...just like gambling, or drinking, or even smoking.