These kinds of wounds don't heal quickly
Hmmm, then why was the brutally colonized Korea (the Southern part, anyway) able to do it? Why were Germany and Japan, which were almost literally bombed back to the stone age able to do it?
But even more importantly:
Why do black nations which were free forever or for a long time (Libera, Haiti, Ethiopia (no, the 6 years of Italian occupation don't count) or were barely touched by colonialism (most landlocked areas barely had any real contact with Europeans, Chad, Mali, etc.) actually do MUCH WORSE than those nations which were much more intensively colonized (South Africa, Botswana, Cote d'Ivoire, Kenya)?
How do you explain that?
And how is it that now the average African has less income, less food and less freedom than at the end of colonialism?