These folks prone to hookable because they are attached to their idea of what the world should be like. They want the world to be a better match to their preferences and biases. One way to hopefully achieve a better match is scapegoating (attributing their own flaws to others through projection-denial), by being authoritarian/condescending toward those they're presumably competing with (this makes them feel more in control and superior), and by making all cultural variation go away - if not by nationalistic/militaristic means - then at least making a persistent effort to demean/marginalize/"disarm" people who who are identified with the Outgroup in order to minimize their threat value.
These attempts to demean others are probably fairly common among ontologically insecure people in general. But I think they're intensified among folks who have little tolerance for ambiguity and impermanence because they are not in touch with their own inner strength. In short, I would think that fear of fear stemming from attachment to existence would lead to bigoted attitudes, closed-mindedness, and a strong need to be right.