I'm guessing the post is differentiating modern black people in the U.S. vs Africa? I don't really know. But I'm not sure I understand your comment of "African

I'm guessing the post is differentiating modern black people in the U.S. vs Africa? I don't really know. But I'm not sure I understand your comment of "African blacks weren't slaves" - plenty of African blacks were slaves. African slavery was a thing long before Europeans and Americans became customers and continued long after (IIRC, slavery wasn't outlawed in Ethopia til the 1930s). Heck, even today there's something like 30 million slaves worldwide, with many of them in Africa (though I think the majority of current slaves are in Asia).