People often have a strong preference to certain ideologies or groups. Having a preference is very normal, but it often gets distorted as a cruel way of discrimination. In fact, even though people tend to discriminate groups of people who they abominate, they feel some sense of guilt, trying to hide their unjust behaviors. This phenomenon exactly applies to shy trump supporters. In order to find a lee way for their actions, people try to use psychological self-justification using a concept called "moral licensing." In the first podcast, Malcom Gladwell introduced the concept "moral licensing", explaining the moral background of people's malicious conducts.
Malcom Gladwell criticized that we often open the door to one outsider and give ourselves a permission to close the door for other sides. In other words, he depicted the concept referring to the gate of chance. For instance, he mentioned Elizabeth Thompson, a talented artist, and started the discussion of gate opening. Thompson was excellent and competent, but royal family was not just ready for the acceptance of minorities. As proven in the former example, people tended to be reluctant of accepting minorities. This led many social activitists to arouse civil rights movments. Thus, nowadays society views discrimination as an enemy to eradicate. However, hypocritically, inside the deep mind, people normally have prejudices and anathema for certain people. Since society views it as a sin, people can't publically explicit their viewpoint, exactly same as shy trump supporters. Instead, they decided to find a seemingly rational self-justification to justify their actions, moral licensing. They try to open to the gate of chance to one group and use the exceptions to discriminate other groups who they actually abhorred. Moral licensing eventually makes the problem social prejudices as a deadlock, extremely complicated to be resolved.
I believe that gatekeepers have the power to make a call. If people are aware of the fact that they are using moral licensing, they will more likely changed their attitudes. Gatekeepers should be the one who need to be aware of the psychological self-justification, turning them into a devil. If the changes do not meet, gates will remain closed and people outside the gate will fall into despair.