I suspect that this whole linguistic fashion of naming a ____ community came from the American habit of euphemism - people who found monosyllables like "blacks" and "Jews" too harsh thought that "the black community" and "the Jewish community" was more euphonious and less potentially offensive.
The reason I object to the formulation is that, as I said the first time around, "community" is a word that creates an artificial unity, something more organicist than conflictual. I'd have thought that it's a word that Amatai Etzioni would throw around, not a Marxist like yourself, who'd be inclined to see stratification and conflict where others might see a whole. And, as the man said, the whole is the false.
Doug