People hold their worldviews deeply.
Worldviews are the lenses through which we filter our own realities.
Worldviews, or the beliefs and convictions we hold about the world around us, are what form our group identities and cement us in the world. From an evolutionary perspective, belonging to a group was necessary for survival. We relied on our broader group for food and protection and to go against the group risked being "kicked out," which significantly increased one's likelihood of dying. Today, while we may not face the same threats our ancestors did, as social creatures we still hold these fears deeply.