So, do people who earn (note the word 'earn') over $250k not 'working class'? Do they not work? WTF is this obsession with 'class' anyway. The word, in US society, should be meaningless. This is yet another lie perpetuated by the fucking left.
You can't honestly believe that there aren't any social and cultural differences between different income strata in the United States. Do they live in the same communities? Send their kids to the same schools? Wear the same clothing? Enjoy the same entertainment? Have the same political influence? Same standard of living?
Of course not. Like any society we have social stratification and social class is a part of that.