Over 50 years ago, Hugh MacLennan wrote "Two Solitudes," which explored the gap between French- and English-speaking Montrealers. That is a completely different situation, but the title applies to many aspects of the black-white relationship in the United States.

What SRS says is true. Even if a viewpoint is understood at some level, it may be mentally rejected if it conflicts with and is foreign to a person's long-established views. For most people, avoidance is the selected response.