One of the biggest threats America faces—we are told—is the assault on our workforce: the loss of American jobs to immigrants, to foreign competition fueled by free trade, and even to technology that will make all kinds of jobs obsolete. Join Yaron Brook as he argues that this fear is entirely misplaced—that a proper grasp of the virtue of productiveness shows that far from fearing and opposing free trade, immigration and robots, we should be eagerly embracing all three.