And Africa wasn’t? Egypt. Kush. Nubia…
There were no African tribes living in the Paleolithic at colonization, this is just your ignorance revealing itself yet again.
Name one tribe living in the Paleolithic. Just one.
Please tell me, where was steel first smelted using blast furnaces?
There’s no denying that, at colonization, Western Europe enjoyed technological advances over Africans. There are several reasons for that. Inborn laziness on the part of Africans was not one of them.