I think you have just more or less described cognitive dissonance.
http://en.wikipedia.org/wiki/Cognitive_dissonance
Quote:
Belief disconfirmation paradigm
Dissonance is aroused when people are confronted with information that is inconsistent with their beliefs. If the dissonance is not reduced by changing one's belief, the dissonance can result in restoring consonance through misperception, rejection or refutation of the information, seeking support from others who share the beliefs, and attempting to persuade others.
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