Their selfishness means that they don’t care about actual Americans beyond their cliques, only “America” since they identify with it. By placing the value of American life over others, it reinforces their sense of superiority, while changing the in-group and out-group when back in America.

It’s similar to how white supremacists don’t give a shit about actual white people, just “whiteness” since it reflects them. Their love for the country is just rebranded narcissistic love.