I don't believe it is racism per se....maybe tribalism.
It is a very ugly trend. Most genocides and coups done in Africa stemmed from tribalism.
Between April and June of 1994, approximately 800,000 Rwandans were killed, all because of a tribal war between two groups in a SMALL COUNTRY.
Uganda is IN A WORSE SITUATION. I've come to notice that Africans are too conscious of material things like land, food and POSITION. It is a herd mentality - the stronger group will try and push out the smaller, weaker group. It is very sad.