If a person were to consider America's past, as an example, he would see how racially diverse people were. Now look around. Just walking across any given area, groups of people of the same race are seen walking together. Most people do not notice this, but very rarely are groups of ethnically diverse people seen. Although there are no longer any laws stating that there must be a separation between different races, people still practice it unconsciously.
Preferential treatment does nothing of the sort.
It was used widely in the past and still exists in some areas today. It has not reduced racial consciousness, but increased it by making people think more about how many spaces are reserved for their particular race. Instead, people should think of what their chances are of getting something on account of their personal knowledge over someone else's, not even considering their race as a factor. This is evident in a black's point of view of getting into the medical school of the University of California at Davis. Sixteen places are set aside just for blacks and other minorities, no matter how low their test scores are.