As a lifelong southerner, I can attest to a veritable cornucopia of racists. There are:

Swamp racists, marsh racists, bayou racists (all are different), mountain racists, valley racists, low country racists, beach racists, ocean racists (totally different species, unrelated, with overlapping territory), woods racists, forest racists, and countless other unknown and tiny micro communities of different racists.