I’ve been reading that, as much as we may not like to believe it, prejudice is an inevitable contributor to how we understand most all aspects of our existence. We attach meaning to what we observe through pre-conceived concepts which may function pragmatically but certainly fall short of providing us with a thorough understanding of our world. And, so, we end up with prejudices heavily ego-centric and self-preserving.
The kind of prejudices that lead folks to embrace racist, xenophobic perspectives and doubt the legitimacy of scientific research result from the lack of having at hand hard facts and reliable theories and have led to some pretty amazing intuitive jumps, irrational thinking and prejudices.
But, then, any belief is a prejudice which denies its contradiction. As I think about my own beliefs that may border on philosophical skepticism (a contradiction in itself) likelihoods and reasonable possibilities seem the operational rule. I suppose the only way to avoid believing oneself into a box is to think theoretically, keep things open ended.