The American Problem is the combination of Income and Wealth Concentration.
And those problems were created by asset inflation from Central Banks' manipulation of currency, the ideologies of too-big-to-fail and trickle-down-economics, predatory de-regulation, hostility to labor organization, warmongerism and widespread paranoia that only serves to justify the gigantic spending on the industrial military complex, which in turns backfeed into the vast coffers of Wall Street.
America has been engaged for a long time in the biggest wealth and income transfer program in history, too bad it is from the poor and the middle class to the millionaires. It is not a surprise that a lot of people end up living in tents.