anarchy ---- Democracy. Technically, it can also be called "anarchism" or "anarchy" from "an-" (no) "arch" (ruler), the state of having no ruler over us but ourselves. -but incorrectly- called...
Adam and Eve
People from Peru are called Peruvians in English.
They're called cannibals if people eat other people. You're called a vampire if you drink other people's blood.
There isn't really one answer but a common name would be "Minnesotans".