No one cares. Just look at the responses in this thread alone.
unfortunately - you are very right. Time and time again we see hundreds of thousands being killed in Africa - the world just shrugs its shoulders. What a shame!
What can be done? Africa is a basket case from stem to stern. We find hope when some leader can cut the AIDS rate from 30% to 15% by preaching a modicum of sexual responsibility. Intervention doesn't work. Non-intervention doesn't work. Aid doesn't work. Carrots don't work. Sticks don't work. I wish that I could propose some great conservative answer with parts of Milton Friedman and Thomas Jefferson, but there's nothing that can be done for a very long time.