If it wasn't for forcing/having "black" folks in this country, these ex-immigrants would have been poorer than church mice.
One thing's for sure, patting one's foot to the Waltz and damn Minuet would have probably been one heaping drag.
Have you noticed that the Great White Race of all Humanity have geniuses and experts on every subject knows to man and the world is slowly melting away, being blown away, lives of all kinds dying away to extinction, no ice for polar bears and walruses, some sea dried completely in the Middle East/Africa. Diseases formerly unknown cropping up, eventually everywhere. Mostly when they say something won't happen, it happens.
Perhaps these geniuses and experts aren't geniuses and experts after all. They just might be a bunch of wind bags like most of the rest of humanity.