The root cause of our issues is the economic austerity imposed on the public causing disaffection of the masses. Dividing this public and redirecting this anger against each other and scapegoats leads to what you refer to.
From the de-industrialization of a country, the privatization of previously public goods, subsidization of the wealthy by everyone else, the decoupling of national wealth from labor, I mean we can go on and on. And lest you think I’m partisan, both parties are complicit, but this is hardly an American phenomenon.
Starts with a tax on taxes. The richer you are, the less tax you will pay. This is a cost to the entire nation as most people aren't rich and most people require the benefits of taxes.