What was the main reason Americans were upset by the Palmer Raids of 1919 and 1920?

The Palmer Raids targeted suspected radicals, often arresting and deporting people without proper warrants or due process. Americans were upset because these actions violated people’s civil liberties, including protections against unreasonable searches and unfair treatment. The correct choice is “The raids ignored people’s civil liberties.”

AI-written and checked against the verified answer.