All of the following is true about the 1920s, except A series of Republican presidents promised to facilitate business expansion and turn their back on Progressive legislation. Americans witnessed an intensification of the mass consumer culture that had been growing since the start of the Industrial Revolution. Americans invested themselves heavily in foreign policy experiments in Latin America and Asia. Both Democrats and Republicans were exhausted by constant efforts and had given up on progressive reform. The United States became the richest society in the history of the world.