It would be great if things were this simple. The loaded language used is transparent.

The brain is complex.
Conservatism and the neural circuitry of threat: economic conservatism predicts greater amygdala–BNST connectivity during periods of threat vs safety | Social Cognitive and Affective Neuroscience | Oxford Academic

And
http://www.cultureunbound.ep.liu.se/...cu18v10a04.pdf

People don't change their views even when given the facts. But you are going to have to get this one yourself. Telling the truth makes no difference to some people - they just can't or won't see it.
Nyhan, B., Reifler, J. (2010) When Corrections Fail: The persistence of political misperceptions.
Political Behaviour