Robert Cote, commenting on the first installment  in this series of blog-posts, says:
I suggest you test your theory at Disneyland. Ignore the parking regs, jump the lines, sneak past the security checks, don’t pay at the gate and when you get inside avail yourself of the attractions and services. If as you predict the theme park becomes a better place for your actions and indeed those waiting in line applaud your actions and eventually approve of your brave actions as being in their best interests I shall withdraw my clam.
This response is appropriate and sensible; it gets us to the heart of the matter. The heart of the matter is not queue-jumping; it is, rather, the belief that the object sought by those waiting in the queue – and by those jumping the queue – is scarce.
The Disneyland analogy works better the more the following is true:
– the U.S. is crowded
— the number of jobs and amount of capital per worker are more or less fixed in quantity
– people, once here, frequently free-ride on goods and services provided by government
Disneyland, after all, is a small space, and privately created, maintained, and owned. Frequently it is on the verge of being over-crowded, so that each new entrant into that amusement park reduces other people’s ability to enjoy the park. Disney has a strong incentive to keep the park from becoming too crowded; it achieves this goal largely by charging high prices. (I’ll note that Disney doesn’t deny large swaths of people any real chance of entering its park. An aspiring customer doesn’t have to be related to an existing customer, for example.)
Also, Disney has an incentive to keep the length of its queues as short as possible. I’ve been to DisneyWorld three times, most recently in April 2005; never have I had a significant wait to enter the park. (I did wait in several queues for a variety of rides and attractions within the park. But for these queues, the standard queue-jumping analysis that I explained in my previous post fits perfectly.)
Moreover, Disney’s customers are not producers. Disneyland is a consumption experience. People pay to get in to consume scarce experiences and things. The rides are there for customers to consume; likewise for the food, drinks, and mouse ears and other trinkets.
But immigrants who come to the United States are not just consumers; most are also producers. (Incidentally, even if they were exclusively consumers, if they – like Disney’s customers – paid for all that they consume, there would be no problem. Problems arise when immigrants – and citizens – free-ride on goods and services supplied by others.)
It’s here that I believe the analogy with Disneyland breaks down irreparably. Not only are immigrants not coming to America to crowd us Americans out of ‘our’ spaces and jobs, most come to produce. I support more open immigration because I am quite confident that
– the U.S. is not crowded 
– while people, once here, free-ride on goods and services provided by government, the first step in solving this problem is to enable more foreigners to work in America legally; that way, immigrants’
contributions to the economy in general, and to the provision of public goods, will be even greater than it already is;
– people, being the ultimate resource , help deepen and widen the division of labor — which is the chief source of human prosperity.