I was taught it was one of the causes of WWII. Countries stopped international trade, which resulted in food shortages, which resulted in fascists invading their neighbors. Smoot-Hawley in the US amplified problems caused by the Dust Bowl. Had the US been more open to trade, we could have imported food while providing other countries with things like steel and coal.

One of the few times high school didn’t teach me bullshit Holocaust denial lmao