That being said, the speaker in that video talks as if the studied levels of addiction are an epidemic. That I'm not so sure of.
I hooked up with this guy on and off when I first got to university. I loved hooking up with him because he was sexually confident and actually knew where certain areas on my body were. But it took him forever to get off. The first couple times I blamed it on the alcohol/weed/late night. Then, I was kind of hurt that he wasn't getting off to me. I was like "I'm fucking sexy. I'm riding your cock. WHAT GIVES?!" So I asked him, when we were both extremely intoxicated. And he opened right up. Fucking alcohol. The shit that he wanted...an 18 year old guy...blew me away. Every single fetish. He wanted to be choked, he wanted a dildo up his butt, he wanted to watch me pee, and for me to pee on his face. I asked him how he even found out he was into this stuff and he said he watched a lot of fucking porn and knows what he likes. Even this isn't necessarily bad for you. But if you can't get off anymore from regular old sex at 18, where is your sexual life and relationships going to go? What is he going to need to get off in 5 years or 10 years or 20 years? I think this is the danger. Exploring your sexuality as you grow up is good and I think porn does help you do that. When I have kids, I will look the other way. But I won't let them sit in their room for hours and hours doing who knows what. Explore your sexuality and then get out of the house and do something.