They blame Republicans.
Look at Wisconsin for example. There is no history of slavery or plantation farming in Wisconsin. Where then did all the blacks come from? Blacks came to Wisconsin and other Northern industrial states in the early 20th century to fill the need for manual labor. Fast forward to the 1990's. The USA started de industrialization big time. Now we have city after city of blacks idled by the globalist elites. They broke their rice bowl which ironically to the Chinese is the worst thing you can do to a person.