Terrible. Japanese internment, the Tuskegee trials, government overreach with the socialistic New Deal, knew about the Holocaust and did nothing, tried to stack the Supreme Court, worked closely with big businesses and established a system of crony capitalism that still affects us, and did not even improve the economy at all. That was World War II.
Lol whut. FDR constantly stood against the isolationists and was criticized heavily for doing too much prior to WWII. His quarantine speech in 37 callling for a change in policy made anti-Semites and isolationists like Lindenberg go nuclear. Also no one really new the full extent of the Holocaust's horrors until after WWII.