Maybe it didn't work out so well because the West always imposed sanctions to insure failure. You guys always leave that out when arguing that Africa should stay under others' rule. Nonetheless, the sanctions are no longer having the desired effect.
For those of you unfamiliar with this situation in Africa, France is forcing former African colonies to pay taxes, to them
"Fourteen former French colonies in Africa pay a
colonial tax amounting to about $500 billion.
This process allows France to appropriate about 85% of the former colonies’ annual income. As a result, African countries face financial difficulties, and have to borrow back their own money from the French central bank as debts."
When African leaders don't comply with the tax, they get killed or removed from power by economic hitmen sent from the west.
"Any refusal by an African ruler to pay the colonial tax often leads to a coup."
Far too many African assets are still under the control of Western powers
mg.co.za
The poster I quoted above wants Africa to keep paying colonial taxes to France. Now ask yourself why a "Black" man would want that.