The quality or state of being bigoted; stubborn and intolerant attachment to one's own opinions and prejudices.
From 'bigoted' (adjective) plus the suffix '-ness' (Old English, forming abstract nouns of quality or state), creating a noun for the characteristic itself.
Psychology research shows that bigotedness often stems from the brain's natural tendency to seek patterns and create in-group/out-group distinctions for survival—our ancestors needed this skill, but in modern diverse societies it becomes a liability.
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