The problem is that there is no true "Left" in America. The Democrats are a right wing political party when compared with international politics.
The only difference between the 2 is that the Dems pretend to fight for human rights, though in actuality they DO very little. Mostly just talk, not mich action.
Bingo.
That's why capitalism will never work. Those at the top just get paid off and the populace suffers.