The tariff act was a disaster because when european nations responded with tariffs on american goods global trade plunged by roughly two thirds from 1929 levels.

The "Smoot–Hawley Tariff Act" was a disaster because when European nations responded with tariffs on American goods global trade plunged by roughly two thirds from 1929 levels. Practically every economic historian agrees that these tariffs were wildly unproductive. 

They had more africans americans than any other state