"The logic of 'race as a social construct' must be tightened and the focus sharpened. Just as it is unhelpful, to say the least, to euphemize racial slavery in continental Anglo-America as "the Peculiar Institution," instead of identifying the "white race," itself, as the truly peculiar institution governing the life of the country after emancipation as it did in slavery times; just as it is not 'race' in general, that must be understood, but the 'white race,' in particular; so the 'white race' must be understood, not simply as a social construct, but as a ruling class social control formation."
Theodore W. Allen,
"Summary of the Argument of 'The Invention of the White Race,'" Part 1, No. 8 SEE HERE