They certainly feel like a disparaged minority that is perpetually disparaged and attacked.

The only problem is that in general most people... aren't attacking them. This persecution complex is almost completely manufactured.

Best example? The War on Christmas. Almost completely fabricated on the evidence. But people feel like they are being pushed to the margins, and there are several leaders fanning these feelings.

And that's not to say there aren't real issues. The middle class is shrinking! Whites are not the majority, just a plurality. The manufacturing world is gutted. The opioid crisis has reversed the upward trend of life expectancy!

But then what do they blame? Feminists. Liberals. Immigrants. Not the actual problems. And being marginalized has more to do with as a bloc them removing themselves from a shared worldview and facts and increasingly becoming more and more unhinged by conspiracy theory thinking.