Most people think of European exploitation when they see the words "African colonialism."
However, decades after independence for the former African colonies, China is moving into the economically-starved nations, buying up land, and shipping off the profits back to the motherland - with barely a cent going to the natives.
For example, take this documentary, "The Colony" about the Chinese migrants to Senegal, and the social and economic tensions caused as a result.
Chinese growth reliant on destroying local competition + destroyed local industry + Senegalese getting no piece of the Chinese economic growth = resentment and potential future ethnic violence.
And I'm sure anti-Chinese fervor in Africa will only increase in the coming years.