Take a look at human history and consider how often we have behaved in antisocially as we harassed, harmed, or otherwise slaughtered each other by the hundreds of millions. It's not as if we're some ideal model that would be bad for future generations to completely deviate from.
Therefore my hypothesis is that it's equally possible something so dramatic and counterintuitive as the changes we see these days may actually be necessary to create a world we've only dreamed to achieve for millennia.
I'm assuming you don't have kids and only have limited interaction with kids in other social context. If we have friends over or something we try to put something on TV to keep the toddler occupied so we can have a discussion, but that's far from the norm. He spends most of the time each day playing with his toys, pretend playing, running around, etc. etc. - and again, I work from home and I'm not strict about limiting his TV time, he chooses to do other stuff the majority of the day.
That you have experience does not make your views universal amongst persons with experience.
I created a company, named "Kidoteca", to make games for small kids, the main idea of the company wasn't mine, but to me it felt a good idea.
But after I saw the behaviour of other kids when interacting with cell phones, for example my nephews and little cousins, it became clear to me it was a net negative, for example one thing I noticed: my nephews whenever they see me, they immediately demand to see my phone, and sometimes they get outright aggressive about it, after a while that I've stopped letting them use my phone, it got better, but after another person gave them a phone to use, all their bad behaviour came back, with them getting aggressive all over again.
We tried ABC mouse and it was OK. I'm actually amazed at how good she is with the mac touchpad. But in general I dislike that many companies are focusing on tablet apps. I just purchased a LeapFrog LeapStart specifically because it is not a tablet. I wish there were more products like this.
Heh, in Spanish we have the term ludoteca, which could be translated as "playroom". When I was a kid we had a dedicated room at school with comic books, tabletop games, card games and so on.