Respond to arthur millers assertion "death of a salesman is not a document of permission"

The play is about the death of a dream, not an individual. Willie Loman did what he had always been told would lead to success. The system used him up and discarded him, like when he said a man is not an orange. Buoy can't take the best part and discard the rest. Willie felt like he had no other way to provide for his family. The play is not an endorsement of suicide, but rather a condemnation of the capitalist system.