The speaker claims that the subject of this poem is "Flinging magnetic curses amid the toil of piling job on job" in a section following the speaker's claim that he is sneering back at sneerers.  
The subject of this poem is said to "laugh with white teeth" under the dust all over its mouth, and that laughter is compared to that of "an ignorant fighter...who has never lost a battle."  The speaker claims that the subject of this poem is "Flinging magnetic curses amid the toil of piling job on job" in a section following the speaker's claim that he is sneering back at sneerers.  The speaker allows that he has seen "the gunman kill and go free," the "wanton marks of hunger," and "your painted women" in acknowledging that the title entity is wicked, crooked, and brutal, but challenges the reader to find "another [entity] with lifted head singing / so proud to be alive."  FTP, name this title thing called Tool Maker, Stacker of Wheat, and City of Big Shoulders in a work of Carl Sandburg.
The subject of this poem is said to "laugh with white teeth" under the dust all over its mouth, and that laughter is compared to that of "an ignorant fighter...who has never lost a battle."  
“{Chicago}” (1) [AH]