Poor, middle, and upper class are economic distinctions in America. Not social ones. I think OP misstated his alignment to the "working class". He refers to

Poor, middle, and upper class are economic distinctions in America. Not social ones. I think OP misstated his alignment to the "working class". He refers to Yuppies in the subsequent sentence which gives a hint that this is a rural/urban divide argument. But that's just my reading of it.