The neocon Ernest Lefever offers an answer, in The Weekly Standard.
BECAUSE OF AND in spite of Hollywood films like The African Queen and television shows like Tarzan, tropical Africa south of the Sahara and north of the Zambezi is terra incognito for most Americans. Some cling to fragments of the “noble savage” myth advanced by Jean Jacques Rousseau, who argued that in an idyllic “state of nature” uncorrupted by civilization, people are innocent, happy, and brave.
Others accept the opposing myth promulgated by Thomas Hobbs that in a “State of Nature,” there are “no arts, no letters, no society, and which is worse of all, persistent fear and danger of violent death, and the life of man, solitary, poor, nasty, brutish, and short.”
Neither myth reflects the real tropical Africa that I saw in the 1960s while there researching three books on U.S. policy. Almost everywhere I saw poverty, corruption, and a retreat from the rudimentary rule of law established by the British and French colonial powers.
As Kempton Makamure, a political opponent of President Mugabe, wrote recently in Zimbabwe’s Financial Gazette, “It is entirely possible that conflicts within independent states in Africa have caused more privation, deaths and stalled development than the colonial rule they have replaced.”