Stating belief is more rational . . .

[TruthWorthy]

Even sadder than that, the willingness of some to refuse bettering their understanding.

[tavarish]

There's a term, although not a legitimate psychological term, called True Believer Syndrome. This is a form of Confirmation bias, which is " a tendency for people to prefer information that confirms their preconceptions or hypotheses, independently of whether they are true.[2][3] People can reinforce their existing attitudes by selectively collecting new evidence, by interpreting evidence in a biased way or by selectively recalling information from memory.[4]"

http://en.wikipedia.org/wiki/Belief_pers...rseverance

Truly crazy how the mind works when it's backed into a corner.

[TruthWorthy]

Confirmation bias works of a fundamental perceptual accentuation whereby a person perceives the confirming and ignores the contradictory.

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perceptual accentuation

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It isn't the best reference, but it should help.