[taurath]

Funnily enough, his argument is that it doesn't mean much for the whole economy for there to be more immigrants. It sure as hell means a lot for individual communities! He seems to approach the economy as a race to the bottom / free market fiasco that has ended up concentrating all the profit in those who already own the land and capital.

It is good for a laborer when there is more available work than there is labor - they can command better rates and generally have a better quality of life (see: almost everyone in the tech industry right now). It is good for someone with lots of capital to have as much excess labor as possible (assuming there's still people that can afford to buy that person's products). When a person with capital can make cheaper products because the labor is cheap, it doesn't necessarily mean that all products become cheaper. You end up with the walmart economy where you have the people who own and manage in their mansions and everyone else unable to generate any meaningful wealth.