“Research shows the appeal of untestable beliefs, and how it leads to a polarized society
“As public debate rages about issues like immunization, Obamacare, and same-sex marriage, many people try to use science to bolster their arguments. And since it’s becoming easier to test and establish facts—whether in physics, psychology, or policy—many have wondered why bias and polarization have not been defeated. When people are confronted with facts, such as the well-established safety of immunization, why do these facts seem to have so little effect?”
http://www.scientificamerican.com/article/why-people-fly-from-facts/?WT.mc_id=SA_DD_20150303