Just my opinion (I would submit there exists sufficient evidence to support it), but I believe much of the reticence people exhibit towards believing facts, evidence and even empirical evidence, has to do with generational myopia.
(Which has spread to become community/local/regional/national myopia.)
Generation after generation continues to pass down conditioned belief system(s) and attitudes which never get challenged.
Indeed we protect them with defensive hostility, even if the opposing force rings ‘true’ at that moment in our ‘soul’.
Until, one day, the soul stops responding to truth.
People believe lies because they lie to themselves every day.
And they ‘want’ to believe those lies.
And, as adults, we never think to ‘really’ question core beliefs, because to do so threatens our perceived/constructed realities.
Underlying the paradigms we grow up with there is fragility we dare not stress by questions.
Human beings either sincerely do want to know real truths, regardless of the emotional loss/cost, or they just plain don’t. And our actions prove our words either way.
The movie “The Matrix” is more relevant than metaphor than most people are willing to consider.
After all, challenging and finding your core beliefs to be false, or at the very least, ‘wanting’, is a very scary thing for most people.
Your self is decompiled before it is reconstructed by those lightbulb moments. And those moments change us fundamentally. Too many people do not like or want that.
So protecting one’s constructed paradigm is something people, in general, will do, to whatever length and cost their fear demands.
And so the basic programming, collectively, never changes.
"The first and greatest victory is to conquer yourself. To be conquered by yourself is of all things most shameful and vile."
"We can easily forgive a child who is afraid of the dark. The real tragedy of life is when men are afraid of the light."
“Any man is liable to err, only a fool persists in error.” — Marcus Tullius Cicero
“The great tragedy of life is we grow old too soon, and wise too late.” — Benjamin Franklin
“Anti-Intellectuallism Is Killing America — Social dysfunction can be traced to the abandonment of reason" - David Noise, Psychology Today, 062315,
"Stephen Fry Explains Why Some People Believe Everything Donald Trump Says”, Ed Mazza, HuffPost, 051217