I am not familiar with the class structure in Africa. I am certainly open to the possibility that this issue is more challenging in Africa, but I think the notion that wealth disparity is non-existent in America and that everyone has an equal chance is completely false or misguided. That's often what the media portrays and what the upper class loves to believe, so I can see how people come to that conclusion, but its not true by any means. Wealth disparity is extremely high in the U.S. because most of the wealth is concentrated among a few individuals/families. Wealth disparity is basically a natural by product of predatory capitalism.
You make good points about urbanization in comparison to rural areas.
I agree with this.