The Klan didn’t like Jews, blacks, Catholics, Italians, Spaniards, Orientals, or American Indians. There were probably a few groups I let out there.
I remember a pretty funny news item back in the 1960s about a group of Lumbee Indians in North Carolina who oraided a Klan rally. They had nice shots of the hooded bigots running away in terror, persued by the yelling indians.
ZULU:
More to the point, much of Protestantism in the Southern U.S., where I was born, raised and still live, and other parts of the U.S. such as the rural midwest, was tied to the KKK in some form back first half of the 20th century, either explicitly in this case or implicitly in most cases.