The author, Arthur Miller wrote the play during the height of American capitalism, what do you think is his purpose for writing Death of a Salesman

I think Miller was really drying to deconstruct the American dream through Willy. As readers, we quickly understand that Willy's version of the American dream is largely an illusion. Success, simply for its own sake, becomes a self-fulfilling failure. Willy wants his success quickly and easily without passion or pride. The spoils of his "success" never materialize. As Willie's illusion disintegrates, so does his identity built on that illusion.