Identify the Main Point or Issue in the Following Passage

Essay

Identify the main point or issue in the following passage, and decide whether the rest of the passage offers reasons for the main point (such as, whether the passage contains an argument), whether it illustrates (provides examples for) the main point, whether it explains the point, is irrelevant to the point, and so on.
"Gun control laws don't work. What is worse, they act perversely. While legitimate users of firearms encounter intense regulation, scrutiny, and bureaucratic control, illicit markets easily adapt to whatever difficulties a free society throws in their way. Also, efforts to curtail the supply of firearms inflict collateral damage on freedom and privacy interests that have long been considered central to American public life."
-Daniel Polsby, "The Promise of Gun Control," in The Atlantic Monthly