Because our worldview is the source of our significance and self-esteem, we want to defend it from the criticisms of out-group members. Those who are different from us implicitly or explicitly call into question the things we hold most dear, the cultural values that ground and shape the contours of our identity and self-esteem in the face of death. In this, out-group members become a source of anxiety, an existential threat. To cope with the anxiety, we rush to defend our worldview and become dogmatic, fundamentalist, and ideological in regard to our values, culture, and way of life. We
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