“A great deal is heard these days about the “morale” of the average man. Some ardent interventionists point to the apparent lack of enthusiasm about the war and cry that something must be done to get people excited. Isolationists advertise poll results which show that only one out of every five persons wants to go into the war now, and accuse Administration leaders of dragging the great majority down a path it does not want to follow.”
Hadley Cantril, Director Office of Public Opinion Research
New York Times November 16, 1941
An overwhelming 97% of Americans in a Dec. 12-17, 1941 poll said they approved of the Congressional declaration of war against Japan.
https://news.gallup.com/poll/5101/americans-say-sept-will-more-historically-significant-than-pearl-harbor.aspx