Just came across this:
collectivenarcissism.com/about-collective
"Collective narcissism is belief that the ingroup’s exceptionality is insufficiently appreciated by others (Golec de Zavala, Dyduch-Hazar, & Lantos, 2019). Collective narcissism is motivated by the investment of an undermined sense of self-importance into the belief in the ingroup’s entitlement to privilege. Collective narcissism lies in the heart of populist rhetoric. People endorsing the collective narcissistic belief are prone to biased perceptions of intergroup situations and to conspiratorial thinking. They retaliate to imagined provocations against the ingroup but often overlook real threats. They are prejudiced and hostile. Deficits in emotional regulation, hostile attribution bias, and vindictiveness seem to lie behind the robust link between collective narcissism and intergroup hostility."
Aha.