After World War I, Americans struggled with economic issues as soldiers faced unemployment and the economy slowed without wartime production. There was also social unrest as nativism and isolationism grew, fueled by fear of communism during the Red Scare and Palmer Raids. Immigrant workers like Sacco and Vanzetti faced discrimination, and quotas were established to limit immigration. Labor unrest increased as well, with major strikes in Boston and the steel industry, though unions ultimately failed to gain widespread appeal.