How can use this poem to argue that the great wall was not worth the cost?

The poem can be used to argue that the great wall was not worth the cost by emphasizing the personal toll it took on the individuals who built it and highlighting the hardships they endured. By focusing on the suffering and sacrifice of those involved, it becomes clear that the human cost outweighed the benefits of the wall. This argument can be strengthened by pointing out the ultimately futile nature of the wall in preventing invasions and questioning if the expense was truly justified.