Is it true that white slaves were replaced by stronger healthier black slaves?

Answer 1

No. The reason why the majority of slaves before (and modern day as well!) are black is because the countries inhabited by black people are, on the whole, weaker, poorer and its citizens basically much more vulnerable of getting abducted or dragged into the slavery industry. The countries where white people live (e.g. United States, Europe e.t.c.) are MEDCs- they have money and the protection that those black countries in Africa don't. Those countries have a lot of slaves that are black today, too. But slavery long ago mostly happened when countries went to war. People from the country that lost would be enslaved by the people from the country that won. Since long ago, Africa has been conquered by other countries, not conquering other countries, so that should be why there were and are so many black slaves rather than white ones. Therefore, it is not true that white slaves were replaced by black slaves. Actually, I think the number of white slaves are increasing due to abduction and the sex slavery industry?