Slavery was also a disaster for Africa itself and its many peoples.Millions abducted with enormous misery , anguish and bloodshed.
Whole societies fragmented, destroyed or twisted and progress and stability in the whole regions thrown back.
The Congo was a hell for many Africans with the King of Belgium treating it as his fiefdom to be exploited and ransacked at his command and its people terrorised...and this long after official slavery had ended.
The book The Poisonwood Bible gives a good description of the legacy of colonial rule.
ifor