Don't be absurd. There's no evidence that it's inherited, and he's arguing that it is a result of events in the person's life. It's entirely nurture.
I don't know if it's entirely nurture, but I do think that's a big part of it. My wife and I are Millennials, and when we grew up all these technologies like the Internet and video games were coming in and I don't think anyone thought too much about it. I know I've played a lot of video games in my time and wasted absolutely copious hours online, though I don't look at porn both for the sake of my wife and because I'm a Christian and it isn't right. But Internet and video games seem to be enough to cause problems even without porn... I'd actually wondered if they weren't rewiring my brain several years ago as I began to notice how hard a time I had putting down my smart phone and just being able to sit quietly without technology in my hand.
My wife and I have three children, and we've realized phones, iPads, etc have become so ubiquitous they're interfering with our ability to spend time with our kids and raise them well. It's just way too easy to grab one of those and not talk at the dinner table, or to completely numb out in the evenings. We are lucky that we are old enough to remember a time before the technology when we were different, because we can see that changes have happened and we've realized we don't like the changes. We're actually turning things off as a result. We've deactivated our facebook accounts, the iPad stays pretty much just at work where I use it only to read work related research materials, and my wife is going back to a flip phone with no real Internet browser (and I may follow her shortly). Oh, and my giant flight simulator hookup is up for sale too. Our oldest child will be six this summer, and I'm just hoping we haven't lost too much time, and that the rewiring can work the other way.
While a lot of people would say I'm pretty successful, as I've gotten a lot of promotions at work and make a good income and have an intact family, still I don't think I'm really reaching my potential as a Dad, husband, Christian, or even engineer because of all these distractions. So here's to turning it back off and partying like it's 1995 again, with an isolated, inconvenient to access desktop being the primary way to get online and discouraging access.