Is it ok to be a fan of a team that calls itself the Blue Devils?

Answer:

Despite having graduated from North Carolina State University, I think we can let this one slide. The technical meaning of the word "devil" is an adversary, though it is usually used in a bad way to refer to someone who slanders another.

According to Duke, the origins of their team's name comes from a French commando unit that gained notoriety during World War I. Duke named its team just after World War I. They even note that there were qualms about the name because the school was originally founded by the Methodists.