Zipes is a Marxist of the Frankfurt school.

NEWYORKER: Once Upon a Time

The Frankfurt School developed Critical Theory, which essentially contrasts the divergence of reality from its ideals.

FORBES: Deconstructing President Obama's Strange Stance On Israel

When Hitler assumed power, the Frankfurt School, which was overwhelmingly Jewish, fled, bringing their theories to America instead of Soviet Russia, which is telling.

FORBES: Deconstructing President Obama's Strange Stance On Israel