Isolationism is often portrayed as "appeasement" during the run-up to the Second World War.
This is not true in the case of the United States. While isolationism was the policy of the US, appeasement was the policy of Britain and France under Chamberlain and Daladier. There is no comparison between a policy of non-engagement (isolationism), and "giving-in" or appeasement, which is a policy of engagement.
FDR's strength & reputation in the days leading up to US involvement in WWII was based on the fact that he alone had not given in to a policy of appeasement as Britain and France had (with the Munich Pact), and Stalin (with the Molotov-Ribbentrop pact). Appeasement was said to only encourage aggressors. See the famous quote in the Congressional investigations of the Pearl Harbor attack, and in the Morganthau Diaries, "you [FDR] are the one statesman whose record has never been besmirched by even a trace of appeasement that the United States holds its unique and supreme position in world affairs today," Morganthau to Roosevelt, November 25, 1941.) nobsOne who's been there. 23:30, 24 August 2014 (UTC)