Maybe this post isn't politically correct enough for you. But, as I said repeatedly, I got all this information from the Nation article I linked. So you must think the article is idiotic. But I'm sure you didn't read it.
It's not that i'm of any concern about politically correctness .... Its a matter of the other influences that have and still to this day, have a manipulative hand in Africa... One would have to deal with far more than what can be covered in a 5000 character commentary Forum.
We know the history of countries, not only Africa but many other countries where their own people kill members of their own nations. What we may care to look at is how sides within nation's are played against each other... while the plundering continues, the bribes flow, and then a policy shift comes and flips the scrip to ensure that the conflict continues.... there are many many factors within what that entails and how its enacted.
So... The point is, trying to measure Africa against other Nations or other ethnic people...
It is not such an easy task by any means... when one looks to address 'progress and economics" of people and nations and seek to compare one against the other.
Global Resources chasing has gone on for centuries, and ANY country outside of the Western Hemisphere, suffer's great whenever there is a "high valued commodity" found and is plentiful.
We should think of the decades upon decades it too for Arab Oil Producing Nations... to figure out they were being ripped and stripped, and they formed an alliance called OPEC. Now, the matter is about what it took to form that alliance. Then we are talking "Energy".... it was a matter of "no nation" willing to allow any single non Arab Nation to "corral the oil"... no matter how much its tried by any nation or coalition of nations. We should know that by the incessant wars in the region... The forces that exist in wide variety, will not allow... the West, The East, The North or The South to come in and "dominate this commodity"... So... money is spun, to try and continue the game or pitting one against the other and continual policy shifts, that use religious based manipulations... So... The Arab situation is not one that can be made poor even by that, because of the many players that, insure and demand that no foreign nation gets the oil without paying standard premium...
Contrast that with Africa.. where countries have had a choke hold on sectors for centuries and decades, and invested nothing to infrastructure and a nation wide education system where people have access to quality standardized education. There is areas where there is no mobility infrastructure invested in, and even when it comes to other things that help advance nations... has been denied and undeserved by the lack of investment and re-investments to modernizing and move forward many areas that are and have been 'encroached upon"... by many means, very little to nothing has been invested to build "nation wide universal programming".
There's more than you and/or I can point to that could sum it up in simple terms, but what we can do is not allow ourselves to ignore the impacts and results of foreign manipulations within the mix of what has continued to pose difficult and challenge within Africa.