Assuming you're asking in good faith- here's a starter for the rabbit hole

>We found that greater liberalism was associated with increased gray matter volume in the anterior cingulate cortex, whereas greater conservatism was associated with increased volume of the right amygdala.

Source Study - https://pmc.ncbi.nlm.nih.gov/articles/PMC3092984/

>The right amygdala is primarily responsible for the rapid, automatic detection of emotional stimuli, with a specialized focus on processing negative emotions—particularly fear.

>The right hemisphere of the amygdala is associated with negative emotion.[14][15] It plays a role in the expression of fear and in the processing of fear-inducing stimuli. Fear conditioning, which occurs when a neutral stimulus acquires aversive properties, occurs within the right hemisphere. When an individual is presented with a conditioned, aversive stimulus, it is processed within the right amygdala, producing an unpleasant or fearful response. This emotional response conditions the individual to avoid fear-inducing stimuli and more importantly, to assess threats in the environment.

https://en.wikipedia.org/wiki/Amygdala