Ironically, upon the soldiers return, what occurred that caused hysteria among Americans?

Once the American soldiers began to return from the front after World War II, a situation of social tension was generated due to the shortage of jobs in the nation as a result of the Great Depression, which although it had ended with the beginning of During the war, the vast majority of jobs had been taken over by women and men who could not serve in combat, with which when these soldiers arrived they found themselves unemployed, generating a budding social conflict since they could not survive due to their own means. As a consequence of this situation, the federal government promoted a series of social programs aimed at improving the situation of veterans, including the G.I. Bill of 1944.

some american cities felt workers were being oppressed by business monopolies