We used to call these "busybodies," people in the neighborhood or community who couldn't mind their own business. Only a subset of these interactions have a racial element, and it is not always clear to me when that is. We cannot say that anytime a white person acts like a busybody with a black person that the white person is racially motivated. The test is whether they would question a white person in the same situation. It sounds like in your neighborhood the answer is "Yes."