All of the following are true of the Red Scare of $1919$ EXCEPT:

Resulted in the arrests of over $10,000$ people, many of which were American citizens

Was completely unprovoked, being started by the U$.$S$.$ government just to target immigrants

Led to the creation of the American Civil Liberties Union in order to challenge the government's violations of the Constitutional rights of Americans

Was seen by A$.$ Mitchell Palmer as a boost to his presidential aspirations in $1920$