Now as for capital being leveraged to earn more, damned straight, the more you have the more you can make no denying that. However the idea that the united states is merely a caste system where the poor are destined to remain and the rich are guaranteed individualy their control ad nauseum is truly foolish as well.
Only in America can an immigrant arrive off of a boat with nothing but the clothes on his back and be part of the middle/upper middle class through hard work in less than 20 years. Or move from lower to upper classes in a single lifetime. You may not like the system, and it has its flaws, but please don't try to characterize it as the devil it is not.
The existence of class differences is more present than most people care to think. Rent the movie Gattaca which presents a stratified, class driven, Western society in its full expression. Then decide how much like that society are we today?
When I see the obscenity mouthing, fist pumping Tiger Woods, I'm confused as to exactly what beneficial lessons I'm to take from sports.