I recently came across an interesting article about the emotional basis for ideology, and how intransigent those ideologies are, even in the face of strong evidence. Some key excerpts:
”...our positive or negative feelings about people, things, and ideas arise much more rapidly than our conscious thoughts, in a matter of milliseconds — fast enough to detect with an EEG device, but long before we’re aware of them…We push threatening information away; we pull friendly information close. We apply fight-or-flight reflexes not only to predators but to data itself.
“We may think we’re being scientists, but we’re actually being lawyers. Our ‘reasoning’ is a means to a predetermined end — winning our ‘case’ — and is shot through with biases…Plainly put, if I don’t want to believe that my spouse is being unfaithful, or that my child is a bully, I can go to great lengths to explain away behavior that seems obvious to everybody else.
“Modern science originated from an attempt to weed out such subjective lapses — what Francis Bacon, that great 17th-century theorist of the scientific method, dubbed the ‘idols of the mind.’ Our individual responses to the conclusions that science reaches, however, are quite another matter. Because researchers employ so much nuance and disclose so much uncertainty, scientific evidence is highly susceptible to selective reading. Giving ideologues or partisans scientific data that’s relevant to their beliefs is like unleashing them in the motivated-reasoning equivalent of a candy store.
“And it’s not just that people twist or selectively read scientific evidence to support their pre-existing views. According to research by Yale Law School professor Dan Kahan and his colleagues, people’s deep-seated views about morality, and about the way society should be ordered, strongly predict whom they consider to be a legitimate scientific expert in the first place — and thus where they consider ‘scientific consensus’ to lie on contested issues.”
I’ll stop there, but there’s much more good stuff. Bottom line, though, is that this ideological entrenchment is probably too deeply rooted in the psyche to respond to mere evidence, or even self-reflection.