I don't call Americans stupid cause Americans are not busy dying by the thousands every day cause they are TOO F**KING RETARDED to boil water, Americans are not busy running around and eating each other cause they don't know how to feed themselves via basic farming techniques. Americans are not so ass backwards that their most advanced tools are a pointy stick that they throw at others, that comparison is amazingly stupid on so many levels. Americans could build more advanced bridges and even more importantly, they could rebuild them if they got destroyed by natural disasters.
The reason why Africa is a shithole is cause Africans have no ability to make use of the resources that they have. Funny enough, Africa is insanely rich on resources. They would be quite well-off, if they knew how to make use of it. That is one of their greatest problems, they never made it past the most basic hunter-gatherer societies for multiple reasons. This is why Africa is a shithole, them being poor is just a result of them being shit at creating wealth from the start.
The greatest irony is that Africa is being re-colonized again, this time by the Chinese. Funny how colonialism is bad when white people do it, now that the Chinks are doing it then it's A-OK.