Add to that recipe southern Europe having to deal with invaders from Africa.
Horrible thought, but too true. But at least European countries have reasonably good sanitation and health care.
African cities are teaming sewers. I read a great, humorous book years ago: Baghdad Without a Map, in which the author says of Khartoum: "Literally, the streets are paved in sh**." I can't imagine that streets in East Africa are any better.