I personally do not think blacks in africa are strong like the ones outside. i guess it is hard to say which race is stronger. maybe no race is stronger , it could be down to individual .
Do you think strength depends on race?
I think most blacks in Johannesburg are nothing when compared to Americans, the former will lose to Americans in strength, but these Africans might surprise you with how strong they are.
While some people are stronger than others, it doesn't depend on race, it is just stereotypes that make people think that. It would hurt you if people thought you were weaker just because of your skin color.