Africa is a victim of their geographic location. Because of their wealth of natural resources every country wanted a piece of the action, which they took and then bounced and left the people with nothing. We didn't fuck Japan up as much because they didn't have any natural resources we took an interest in. Germany on the other hand has a ton of natural resources but we got to them too late I guess.
That's a huge fucking stretch. African countries, Mexico etc suck so bad because they are corrupt to the bone, nothing else. Most countries have suffered through imperialism to some degree - that's a shit poor excuse. Fuck - we dropped Atomic bombs on Japan less than 70 years a go and they are a dominant economy.