It is important to note that the “fascist” countries of Europe in the 1930s were formed in reaction to threats of communist takeovers (as early as the 1920s - Italy and Germany were two early ones). The “Western democracies” offered no support for countries as their institutions came under attack by communist mobs controlled by Moscow determined to “fundamentally transform” them, eliminating their upper and middle classes - so they relied on their military to do so. The US in the end sided with the communists and consigned much of Europe to nearly 50 years of communist rule; now the “Western democracies” are attacking some of those same countries for protecting themselves from Islam.
FDR would’ve followed the leaders if war had not broken out.