I feel the same way. In a sense, our parents had it easier in terms of the damage external world could do emotionally, because there was typically a simple way to prevent most of it. Now, it is not nearly as simple. Not to search very far, our kid has a media diet that some consider strict ( 30 minutes a day of pre-selected items if kid meets some criteria, which I still consider too high ). But then some kids already have cellphones, ipads ( some completely unlocked too ! ). I only recently gave my kid lappy with gcompris installed ( locked down lappy; no net access ). Point I am trying to make in my rambly way is that each parent is hodge podge of various choices. And it does not work in aggregate.
I get that it is all about balance, but it is hard to disagree with Rahm here. Top down ban is the only real way to go.