I watched the Robert Reich documentary, Inequality for All, a
 couple of nights ago.  In this documentary, Robert Reich was arguing 
that the decline of the middle class in the United States is not good 
for the economy or society.  When the middle class is struggling to make
 ends meet, that means less consumption, which leads to further economic
 ills (i.e., companies laying people off because the companies are 
selling less, less tax revenue because there are fewer taxpayers, less 
education to help people compete in the face of globalization, etc.).  
Moreover, Reich contends that the current political polarization is due 
(at least in part) to rising economic inequality.
What was ironic about the documentary was that, in some cases, the 
people agreeing with Reich were the rich, whereas those arguing with him
 were the poor.  Warren Buffett agreed that he should be paying more 
taxes.  Someone Reich interviewed who made a six-figure salary was 
saying that he hardly pays any taxes, and that significant chunks of his
 money serve no social value at all.  However, when Reich was speaking 
to factory workers, a couple of them were challenging Reich.  One was 
suggesting that Reich was attacking the American way of life.  Another 
factory worker was saying that he is not as smart as the rich are, which
 is why he is a laborer, but he said that the rich deserve to make all 
the money that they do.
There were plenty of exceptions to this rule, though.  Reich 
interviewed a Mormon family, which is conservative on social and 
cultural issues, but which was lamenting that it had to work so many 
hours only barely to get by.  Reich interviewed plenty of people who 
were struggling, even though they worked multiple jobs.  On the other 
side, there was another person in the documentary who was actually 
defending corporate downsizing, saying that sometimes corporations need 
to lay people off in order to survive.
Something else that caught my attention on the documentary was when 
Reich was saying that the rich benefit from a strong middle-class, too, 
that it is not a zero-sum game.  This is an important point, in my 
opinion, because Reich and people who believe along his lines are often 
accused of class warfare, of exploiting envy towards the rich, of 
wanting everyone to be economically equal.  But that’s not the case.  
When there is a strong middle class, people are buying more products, 
and that helps the rich.  And I agree with something that Elizabeth 
Warren said when she was running for Senate: yes, it’s all right for the
 rich to make the money that they do, but they should put some of it 
into the system (i.e., education, infrastructure) so that others can 
have the opportunities that they had.
This is a worthwhile documentary to watch.