"this fragile experiment began by taking for granted the ugly conquest of Amerindians and Mexicans, the exclusion of women, the subordination of European working-class men and the closeting of homosexuals. These realities made many of the words of the revolutionary Declaration of Independence ring a bit hollow. yet the enslavement of Africans -- over 20 percent of the population -- served as the linchpin of American democracy; that is, the much-heralded stability and continuity of American democracy was predicated upon black oppression and degradation. Without the presence of black people in America, European-Americans would not be "white -- they would be only Irish, Italians, Poles, Welsh, and others engaged in class, ethnic, and gender struggles over resources and identity. What made America distinctly American for them was not simply the presence of unprecedented opportunities, but the struggle for seizing these opportunities in a new land in which black slavery and racial caste served as the floor upon which white class, ethnic, and gender struggles could be diffused and diverted. In other words, white poverty could be ignored and whites' paranoia of each other could be overlooked primarily owing to the distinctive American feature: the basic racial divide of black and white peoples. From 1776 to 1964… this racial divide would serve as a basic presupposition for the expansive functioning of American democracy, even as the concentration of wealth and power remained in the hands of a Few well-to-do white men. (p156 of 2001 edition)"