From
https://jspp.psychopen.eu/article/view/750/html:
No one factor describes Trump’s supporters. But an array of factors – many of them reflecting five major social psychological phenomena can help to account for this extraordinary political event: authoritarianism, social dominance orientation, prejudice, relative deprivation, and intergroup contact.
All five of these tightly interconnected phenomena – authoritarianism, social dominance, prejudice, lack of intergroup contact and relative deprivation – make people vulnerable to an intense sense of threat. Authoritarian leaders have long understood that they can attract followers by enhancing the perception of dangerous threats to the society and offering simple solutions (
Mols & Jetten, 2016). Sometimes the threats are real (Hitler with massive Weimar inflation), but often they are imagined (Trump with patently false claims of a declining economy, massive voter fraud, enormously increased crime, and unvetted immigration). With a background of genuine terrorist threats, Mideast conflict, and a recent great recession, even imagined threats seem plausible – especially to citizens who are already easily threatened and who have witnessed rapid change in their localities.
Authoritarianism and social dominance attitudes have been routinely found to correlate significantly with far-right voting in nations throughout Europe. These voters share with Trump supporters similar views of women, minorities, immigrants, and free-market economics. Three major Populist-like grievances of Europe’s far-right arise from economic changes, political elitism and immigration – with immigration the most intense issue (
Ivarsflaten, 2008). American research suggests that the same can be said about the Trump movement.