A therapist once explained to me that the human mind first processes things through the emotional regions of the brain (limbic) and only afterwards can it reach the logic center (pre frontal cortex).

This has helped me to understand a lot of human behavior and social media posts and reactions (also propaganda, cults, sales, etc)

You may think you have come to a logical conclusion about political issue x or political party x, but very likely the vast majority of us are first having a triggered emotional reaction and later using our pre-frontal cortex to logically create a narrative on why we feel this way and justify it.

Taken to extremes I think you can see things like today happen and see how people react.

Sometimes I catch myself defending someone or a position and later realize I am just wrong, it’s just that I had an emotional reaction felt a possible connection with the person or a cause or vibe they expressed or are connected with and then my attorney brain kicks into overdrive trying to make it all add up.

It also explains a lot of domestic issues, if you are upset or scared your brain stays in the limbic center and is literally incapable of rational thought until you calm down or feel safe.

Just my two cents

Another way to frame the same observation that I like goes:

"A magician, asked how he comes up with his magical tricks, asks back: are human rational or irrational? It's a trick question, we are rationalizers. We make up our minds, and then come up with a reason why that's right.

Magical trick is all about understanding this dynamic and guiding the reasoning to the conclusion you want it to make"