I do have one issue with your post you keep calling them Africans, they are not, the people you listed are Black Americans mostly with mixed blood even if they do not speak of it, ex. Obama.
I did it for effect. They call themselves African-Americans, and my angle is to call them out as to their tribalistic, terroristic, Mogadishu-esque M.O....notice what having them in the highest offices of the land, running every major city, etc., is turning our country into....
There are several black immigrant families in our area who were born and raised in Africa. They are among the best neighbors -- they keep their property nice, always say hello cheerfully, speak with a British accent, take good care of their polite little children, and attend church regularly. They are alarmed by the behavior of African-Americans. One of them said to me that when she wants to get something done in a store or a government office, she tries to get a white person to wait on her because the blacks have such bad attitude.