What theme does Urrea convey to his readers in By the lake of sleeping children ?

His poignant, widely acclaimed account of the struggle of these people to survive amid the abject poverty, unsanitary living conditions, and legal and political chaos that reign in the Mexican borderlands vividly illustrated why so many are forced to make the treacherous and illegal journey “across the wire” into the United States.

Explanation:

His poignant, widely acclaimed account of the struggle of these people to survive amid the abject poverty, unsanitary living conditions, and legal and political chaos that reign in the Mexican borderlands vividly illustrated why so many are forced to make the treacherous and illegal journey “across the wire” into the United States.

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