Without any actual understanding of epistemology, people are left with logically fallacious cognitive biases and heuristics (which are predominantly subconscious) to “decide” what is true or false, and what is good or bad.
Worse still, such people often hypocritically pretend that their own view is the only correct one, and resort to force (whether social, political, economic, physical, etc.) to assert their own view to make themselves feel good, instead of honestly considering the views of others.
“The wise man questions the wisdom of others because he questions his own, the foolish man, because it is different from his own.” — Leo Stein
Instead of looking at widespread ideological conflict, and trying to figure out if there is a kind of “truth” and “good” that everyone can share, people would rather pretend that their own version of “truth” and “good” is the only valid one. Which to me is really pathetic.
People do not even realise how much they are being influenced by a shortcoming of the human mind, called cognitive dissonance.