<span>Isolationism in America was based on two beliefs. The first was the view that the United States should avoid any political commitment that tied American policy and action to the policies and actions of other nations. The second was a pervasive belief that the central aim of American foreign policy was to avoid foreign wars at all costs. </span>
Had Jewish ancestors. This was different from historic anti Semitism because it defined Jewishness as hereditary (race) rather than by practice (religion). Three categories of Jews were created: "Full Jews," who either practiced Judaism or had at least 3 Jewish grandparents, regardless of religious practice; "First Class Mischlinge" (Half Jewish), who had 2 Jewish grandparents, didn't practice Judaism, and didn't have a Jewish spouse; and "Second Class Mischlinge" (One Quarter Jewish) who had one Jewish grandparent and did not practice Judaism
Yes, they were ennimies in the war.