I do not think scouts subconsciously discount based on race, BUT, and I say this as a professional baseball scout, they definitely go with what they know works.
Meaning, in my sport, if there are two players, more or less equal,one from the Dominican Republic, one from Asia, then virtually every scout I've known would go for the kid from the DR. There is more of a track record of success there.
Very different sports obviously, but I can see how it may be harder to project a kid of east Asian ancestry who appears to be adept at cb in college. A scout would have far less to go on in terms which way the body will go, how the body will handle bulk, whether the speed will stay or go, etc...