Your hypothesis only works if the American economy produces the excess wealth needed to buy social peace from nonproductive poor people who lack skills and education. America's economy is no longer able to produce the necessary excess wealth.The problem is that they're not moving down. Others are simply moving up. God forbid the former 'second class vote' should carry sway. Minorities and women!? *gasp* Having their votes counted and actually making their voices heard? For shame! Why the next thing you know, gays will even have rights. Oh ****, they voted too.
That means the different American tribes compete against each other in a zero sum game. Lots of conservatives aren't bigots but refuse to join you in postmodern leftism. I would rather see amercia die and be broken up into a series of competing successor states than see your vision for amerika implemented.