How is a punchline like a starving African child? If you spend too much time explaining why it's funny, it dies.
Do you really see people from Africa as a joke?
Africa is a joke with their starving kids, I don't care.
You shouldn't make comments that make light of children starving to death. This only makes people insensitive to how serious the situation is. Instead of joking about starving children you should find out if there is a way you can help the situation.