I couldn't find where he made that exact point, if he did, I would reply to it by saying that what politicians sell and what they actually do are two completely different things. Both sides of the aisle have been selling rosy futures and working towards the exact opposite for decades. I'd say that Bernie & Trump were evidence that the message "your future isn't all that rosy unless we change substantially" resonated this election.
dmix and I agree globalization is here to stay. I was just a little irritated by his implication that the way we need to respond is by "developing new industries" and "adapting to the global marketplace" and all that jargon. I'd say the S&P has adapted just fine to the global marketplace. The problem is that the median American is worse off anyway. Your second paragraph is apt about some potential solutions.
This is most certainly true. And I think dmix hit on a very important point when he mentioned that its hard for politicians to sell a future thats not all rosy and prosperous for everyone.
Off the bat, one of the things the US Govt. could most certainly have done is provide Universal Healthcare and some kind of funding for expanding basic education. I think about all that money earned by US corporations lying abroad...if you think about it, if we had a better taxation system, the strength of US corporations, their ability to generate such profits from around the globe could have been deployed to make all (or most) Americans have better healthcare and education.