Iconoclastes
You are taking the word
exploitation too literally here, it doesn't necessarily mean something bad, it may mean lost opportunity to develop but not always something bad. For example, in Kenya virtually all the university books used to teach are foreign, that's economic and academic exploitation because it's opportunity lost, but its also good because we learn something new. Here interpreting this
opportunity lost into political/economic value is up to policy makers in government not up to this discussion, I'm just highlighting some observation i made.
If we developed our own language say like Japan did after the world war, we would be able to publish local content. The Japs are pioneers in Electronics and Industrial Manufacturing, America and other European countries go there translate those publications into their own languages and transfer that knowledge back home. See that's value creation, also many more Japanese people spend more money in their own country going to their own universities, so they don't have problems such as brain drain that are rampant in Africa and many more benefits.
Also, you give disconnected examples, because you fail to understand my point. Zaire was exploited because it's mineral rich, and because it was during colonialism when all other African countries were in a similar state. I'm talking about now and the future, you are still talking about the past??? Actually Belgium and France facilitated that exploitation, Britain happened to be a world power then, so they could do it since they needed more resources, they did not govern Zaire.
The USSR's interests were to spread communism, what has speaking Russian got to do with that, Russia was not among the colonizers of Africa. China came later and they are borrowing a leaf from the other European countries albeit in a more intelligent manner, and yes they are exploiting us proper, we are just too blind to see. We don't have to speak Chinese to be exploited because they already found us in a position ripe for exploitation.
And yes Britain did exploit Brazil in the 17th century, remember slave trade? Britain essentially controlled the slave trade, America's and Brazil's work horse, so when it ended it, the economies of these countries were at the mercy of Britain for quite some time, that's exploitation. Portugal was one of the colonizing countries so I don't understand its inclusion. Saudi Arabia did not colonize any African country and it's not in a position of power like the other European colonizers, so its inclusion does not further your point in any way.
You make the wrong assumption by thinking that only speaking a foreign language makes you prone to exploitation, so your rebuttal isn't really conclusive. First understand
exploitation in the context of the topic at hand then make a better rebuttal