Who argues that deviant behavior is only deviant because people label it is as deviant

Howard Becker

Explanation:

Howard Saul Becker a sociologist who has made significant achievements to the sociology of deviance, sociology of art, and sociology of music. He is the one who have said that "social groups create deviance by making the rules whose infraction constitutes deviance".

Becker believed that "social groups create deviance by making the rules whose infraction constitutes deviance". Labeling is a process of social reaction by the "social audience."