How did the onset of the great depression impact urban unemployment?

The depression had devastating effects in almost all countries, rich and poor, where insecurity and misery were transmitted as an epidemic, so that they fell: national income, tax revenues, business profits and prices. International trade fell between 50% and 66%. Unemployment in the United States increased to 25%, urban workers who depended on the metal industry, textiles and construction were seriously affected.

they change the constitution.