Americans in the 1920s felt threatened by foreign ideas due to fear and distrust, leading to the 'Red Scare.'
Fear and distrust of foreigners bled into American society during the 1920s, leading to suspicion towards groups endorsing socialism or anarchism. This era, known as the 'Red Scare,' was fueled by the fear of a leftist revolution akin to what happened in Russia.
https://brainly.com/question/21718529