The Vietnam War killed two million people, and was based on literal clinical paranoia: the Domino Theory.

Americans really do not consider non-Americans to be human. Murdering a few million non-Americans is thought of as a good thing by so many Americans, apparently including you.

“Because not only will America go into your country and kill all your people. But what's worse I think is they'll come back twenty years later and make a movie about how killing your people made their soldiers feel sad." -Frankie Boyle