I don't mean like, peer pressure shame. I mean inner shame, psychological shame. The angst of not being to internally reconcile opposing value systems. Like "I want to be treated fairly, but what if someone treats me badly the same way I treat others?" Cultists, narcissists, bullies, live in fear of the answer to this question, which forms the basis of their internal shame.

The cognitive dissonance that Trump voters have is like a debt that accrues interest, and shame is a measure of the total balance of debt. The way you pay down a debt starts by acknowledging the objective reality of having that debt, and giving something up in return.

A normal person, when faced with shame of a manageable scale, handles it by apologizing for wrongdoing, offering a conciliation gift, changing the way they behave and the values they believe in, that kind of thing. Trump voters are incapable of this, as they seemingly don't acknowledge the debt in the first place. Which means their debt is always growing, the stakes are always rising. Eventually they pass an event horizon, where they believe reconciliation is no longer possible and the only two options are 1) cling tighter to the beliefs, or 2) end their lives, often violently, often with intentional collateral damage.

And we have no shortage of examples of the latter.