In the supposedly classless society of the United States, the 400 wealthiest Americans now have an average net worth of $5.7 billion -- an increase of 14 percent over the previous year.  Economic inequality is growing rapidly, and the wealthiest Americans are increasing it by championing the abolition of public schools, minimum wage laws, Medicare, and Medicaid, weakening unions, restricting voting rights, and, of course, promoting tax cuts for the rich.