Given that Gracie has been turned down on the basis that there were too many African Americans, we can call this disparate treatment.
This is the term that is used to refer to the type of treatment that may be done adversely which has the way of affecting the person in a rather unpleasant way.
The treatment here is an unfair one because she may even be fully prepared to take the job and act well. But the fact that the opportunity was taken from her would leave her feeling sad and unpleasant about the situation.
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