I try not to be pedantic.....but I was a teacher, and gave reading assignments...(!) I strongly recommend historian Richard Hofstadter's writings about America.
(I know...I know.... too many words. But words are all we have that separates us from chimps.)
"The Paranoid Style in American Politics" was written in 1964, and it explains much about where we are today. It's the guns.. but add our national paranoia to those guns, and you can see how we got here.
(snips)
"American politics has often been an arena for angry minds. In recent years we have seen angry minds at work mainly among extreme right-wingers, who have now demonstrated in the Goldwater movement how much political leverage can be got out of the animosities and passions of a small minority. But behind this I believe there is a style of mind that is far from new and that is not necessarily right-wing. I call it the paranoid style simply because no other word adequately evokes the sense of heated exaggeration, suspiciousness, and conspiratorial fantasy that I have in mind. In using the expression “paranoid style” I am not speaking in a clinical sense, but borrowing a clinical term for other purposes. I have neither the competence nor the desire to classify any figures of the past or present as certifiable lunatics. In fact, the idea of the paranoid style as a force in politics would have little contemporary relevance or historical value if it were applied only to men with profoundly disturbed minds. It is the use of paranoid modes of expression by more or less normal people that makes the phenomenon significant."
" In American experience ethnic and religious conflict have plainly been a major focus for militant and suspicious minds of this sort, but class conflicts also can mobilize such energies. Perhaps the central situation conducive to the diffusion of the paranoid tendency is a confrontation of opposed interests which are (or are felt to be) totally irreconcilable, and thus by nature not susceptible to the normal political processes of bargain and compromise. The situation becomes worse when the representatives of a particular social interest—perhaps because of the very unrealistic and unrealizable nature of its demands—are shut out of the political process. Having no access to political bargaining or the making of decisions, they find their original conception that the world of power is sinister and malicious fully confirmed. They see only the consequences of power—and this through distorting lenses—and have no chance to observe its actual machinery. A distinguished historian has said that one of the most valuable things about history is that it teaches us how things do not happen. It is precisely this kind of awareness that the paranoid fails to develop. He has a special resistance of his own, of course, to developing such awareness, but circumstances often deprive him of exposure to events that might enlighten him—and in any case he resists enlightenment.
We are all sufferers from history, but the paranoid is a double sufferer, since he is afflicted not only by the real world, with the rest of us, but by his fantasies as well."
(I don't know if you'll hit a paywall)
https://harpers.org/archive/1964/11/the-paranoid-style-in-american-politics/