I'm not sure that class-based polarization is inherently problematic. Surely some degree of inequality is an inviolable consequence of a society that values both freedom and private ownership.

Imagine an America in which the poorest families had two cars and a four-bedroom house, in a safe neighborhood with good schools. Would it then be considered problematic if Gates and Buffet became trillionaires?

The problem is poverty; the problem is that the south pole is too far south. It's problematic that many still don't have access to the fundamental Maslow's. The space between the poles isn't.