I disagree with that assessment. You are, in my opinion, being overly reductive. The author is recognizing that there is a power disparity between different in

I disagree with that assessment. You are, in my opinion, being overly reductive. The author is recognizing that there is a power disparity between different income brackets, and that power disparity is used to limit upward mobility. No wealthy family wants their children to be less successful than they were, and they can invest much more time and resources into ensuring their children are successful than the bracket below them. This is at odds with the 'American Dream' that's sold to many of us -- that this is a country of limitless economic mobility if you just put in the elbow grease.