I think that the jws I knew were not blatantly racist, but only among their jw friends that shared their hidden beliefs. Then there is institutional racism, built into the community life around you, for many generations.
Perhaps, the term might be prejudiced.
When I was young I lived in a southern state in the 50's, I am white. Congregations were segregated. It would look bad to the white "worldly" people if white jws witnessed to black "worldly" people. It would be better if their own people witnessed to them. Then civil rights came in the 60's, but congregations in the south still were segregated. Think about it, congregations were formed based on the people who lived near the KH. There were few if any integrated neighborhoods even then. Congregations still tend to be more black in areas where the neighborhood is made up mostly black people, and vice versa for mostly white neighborhoods.
In NYC, the only white people in some congregations were Bethelites assigned to go to that congregation. The WTS was quietly trying to integrate. I used to wonder if they sent black Bethelites to mostly white congregations?
I wouldn't say that jws are more prejudiced than non-jws, just not reflecting the official statements of the WTS.
I had family members that would never work in predominantly black neighborhoods, too much crime there. At the same time their neighborhood while mostly if not all white, was the biggest center of the sale and use of drugs in the city...