The only reason America didn’t have an anti-war movement in World War 2, was because Hitler invaded the Democrat Holy Land of Russia. The Left was not about to go marching in the streets, when their hero Stalin was in mortal danger.
True. The two major anti-war movements in the US were the America First isolationist movement, which patriotically disbanded after the attack on Pearl Harbor and the declarations of war by the US, and the anti-war movement led by the American Communist Party after the Hitler-Stalin pact of August 1939 up until Hitler attacked the USSR in June of 1941. By the time the US entered the war, American Reds were vociferously eager to fight the Nazis so as to save the USSR.