Do they want to be in Africa? I doubt it. Slavery is bad, but that doesn’t mean it is tragic that the descendants of those slaves are living in America.
I think bag_boy was trying to highlight the tragedy that we can still see direct effects of slavery in the United States, not that it's tragic that descendants of Africans live in America
I can't speak for bag_boy, but yes, that was more or less what I was getting at; while the correlation is fascinating, it's also sad to think about the "why" and "how" behind it. I didn't mean to kick a hornets nest...