And because of the bucolism of the 1930s, we were thrust into a war we were ill-prepared for, resulting in the unnecessary deaths of 10s of thousands of Americans, and probably other nationalities as well, because a myopic American electorate refused to spend money on a competent military.
We basically entered WWII as a 15th rate power, whose draftee soldiers had outdated and insufficient weaponry and grossly inadequate training against the world's best soldiery, who'd been actively fighting for 3 or more years.
I guess we believe the fantasy we want to, hmmm?
I think there is a third course, here, that doesn't involve over-militarism or pie in the sky isolationism/pacifism.