What did hauely-smoot tarif accomplish? Why wasn't it successful?

The Act and tariffs imposed by America's trading partners in retaliation were major factors of the reduction of American exports and imports by 67% during the Depression. Economists and economic historians have a consensus view that the passage of the Smoot–Hawley Tariff worsened the effects of the Great Depression.

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .