We Should all be happy for the future, everything is being re-learned.
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“During the 1930s, the combination of the Great Depression and the memory of tragic losses in World War I contributed to pushing American public opinion and policy toward isolationism. Isolationists advocated non-involvement in European and Asian conflicts and non-entanglement in international politics. ”
“The leaders of the isolationist movement drew upon history to bolster their position. In his Farewell Address, President George Washington had advocated non-involvement in European wars and politics. For much of the nineteenth century, the expanse of the Atlantic and Pacific Oceans had made it possible for the United States to enjoy a kind of “free security” and remain largely detached from Old World conflicts.”
Nevertheless, the American experience in WW I served to bolster the arguments of isolationists; they argued that marginal U.S. interests in that conflict did not justify the number of U.S. casualties.
In the wake of the World War I, a report by Senator Gerald P. Nye, a Republican from North Dakota, fed this belief by claiming that American bankers and arms manufacturers had pushed for U.S. involvement for their own profit. The 1934 publication of the book…
The isolationists were a diverse group, including progressives and conservatives, business owners and peace activists, but because they faced no consistent, organized opposition from internationalists, their ideology triumphed time and again. Roosevelt appeared to accept the strength of the isolationist elements in Congress until 1937.
https://history.state.gov/milestones/1937-1945/american-isolationism