What is the author's tone in Barbie Doll by Marge Piercy?

Piercy employs irony to drive her point home. Irony, which comes from the Greek word "eiron," refers to the way in which a speaker "hides" or in some way understates what she really means. The end of Piercy's poem is ironic because the only thing that is consummated is the "girlchild's" death. When the speaker wishes "every woman a happy ending," she is actually expressing disgust at what has happened to the girlchild and what regularly happens to women who have been socialized to make men's desires their own.