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It is rich of you to support a law that interfered with one kind of supply chain and then to lecture someone who gave a detailed description of harms that probably are effects of the interference.
Although it is true that a person is "not obligated [you meant entitled] to the output of other peoples' work," that does not mean that enough interference by ham-handed governmental policies won't make everyone significantly worse off -- because we all make extensive use of complex chains of economic transfer.