What the unconscious mind thinks of interracial marriage

The human mind operates simultaneously on two fundamentally different tracts, unconscious thinking and conscious thinking. Recent estimates accord unconscious thinking with about 95-99.9% of human mental bandwidth, decision-making influence or "firepower." The rest is our conscious thinking. Conscious and unconscious thinking or decisions can be in conflict. The split human reaction to interracial marriage is a case in point.

A recent Washington Post article describes brain responses to photos of same-race and different race married heterosexual couples. The article is based on data published in a recent paper in the Journal of Experimental Social Psychology "Yuck, you disgust me! Affective bias against interracial couples" Brain scans of people who claim to have no disapproval of or bias against interracial couples show disgust or disapproval of photos that show interracial couples (black and white), but not photos of black couples or white couples. According to the WP article, "Researchers found that the insula, a part of the brain that registers disgust, was highly active when participants viewed the photos of the interracial couples, but was not highly engaged when viewers saw the images of same-race couples, whether they were white or black." This shows the possibility of disconnects between what the unconscious mind sees, thinks and decides, i.e., disgust toward interracial couples, and what the conscious mind sees, thinks and decides, i.e., acceptance of interracial couples. 

What may be unusual about this difference of opinion is that, at least for young people (college student volunteers in this case), the conscious mind dictates personal belief and behavior toward interracial couples despite a contrary innate unconscious belief or judgment. For politics and social matters like this, that triumph of the weak human conscious mind over our powerful unconscious mind is the rare exception, not the rule. For better or worse, that's just the nature of what evolution conferred on the human species in terms of how we see and think about what we think we see in the world.

Questions: Does the data show disgust, or is data obtained from the human brain simply not believable? Is it possible that our unconscious mind can be so powerful compared to our conscious thoughts and reason?