by Dawn Merrill, American Thinker:

Human beings are hardwired for a belief system.  You, as a human being, are pre-programmed to believe in something.  Why do so many people today believe in things that are, objectively, untrue?  And how do we get our Nation back?

Any student of history can tell you why.  Common belief systems evolved as a mechanism of basic survival.  Survival today is far less difficult than in the past, and that is part of how and why current belief systems are so fractured.  When societies start to break down, tribalism forms, and previously common belief systems collapse.  Nature abhors a vacuum.