Whitman highlights the 'singing' of different workers in America to celebrate diversity, unity, and the democratic spirit of the nation. By giving each worker a voice, he underscores the value of all contributions to America's identity. His portrayal reflects the changing social landscape of the mid-19th century, emphasizing the dignity of labor.
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Answer:Whitman highlights their singing to show that Americaβs strength and beauty come from the many hardworking individuals, each with their own voice, working together in harmony. ;