How does the poem I Hear America Singing illustrate the definition/characteristics of Realism

The poem I Hear America Singing illustrate the characteristics of Realism by showing a reality of the people that make up America.

Explanation:

In this poem the author is a spectator about the working class of America. He says that "he hears them sing", and as the poem progresses he makes a description of each of the works of these people who make up America.

It resembles realism by showing scenes from everyday life, such as the task of each of these workers and by showing details of reality since they are doing their job as they do on a daily basis, and the author provides details about it.