I think it has something to do with dry crops.
Because they have new things and better jobs now
The answer is the English Imperialist.
The Englishmen had a more efficient route to Asian
countries. They call this route as the Northeastern Route. They discovered the route around 1800’s that
they were able to utilized this route. Since then, they had used this route to
reach their destinations faster.
As they commenced to develop a hatred towards Jews, Catholics, and immigrants, the revived Ku Klux Klan were able to spread beyond the South-and into some urban areas.
Basically, they were led by their hatred.