One of the ways of trying to justify illegal immigration from an economic standpoint is to point out that the work done by these immigrants is adding to the total output of the United States.
We have all heard about the "undocumented workers" who grow our tomatoes, harvest our strawberries, clean our hotels, take care of our children, mow our lawns and do innumerable other things. All of this of course adds to the nation's total output.
If that is a sufficient justification, why not open our borders to everybody from countries around the world? If not, why not? By what principle would you decide where to put a limit?
There is no point saying that there is not room enough for everybody in the world to be here because there is.
A quarter of a century ago, I sat down with some statistics on world population and on land area in the United States -- and discovered that the entire population of the world could be housed in the state of Texas, in one-story, single family homes, 4 people to a house, on a lot slightly larger than the lot where I was living at the time, in a typical middle-class neighborhood.
The world's population has of course grown since then, so instead of putting everybody in Texas, we could spread them out from sea to shining sea, with lots of elbow room for everybody.
There is no question that, with billions more people living in the United States, our national output would be a lot bigger than it is today. Why not do it then, if the argument based on immigrants' contribution to increased American output is sufficient?
More important, by what principle would you decide where to draw the line -- and why does that same principle not apply to today's immigrants, legal or illegal?
The most obvious objection is that the world's population living in the United States would not only add to output but add to the costs imposed on American citizens. That same argument applies to immigrants from Mexico or any other country today.
The emergency rooms of many hospitals in California have become a major source of medical treatment for illegal immigrants, and the financial drain of serving people who cannot or do not pay has shut down some of these hospitals, making them unavailable to American citizens as well as illegal aliens.
Schools have to contend not only with the additional financial costs of educating the children of illegal immigrants but also with the educational problems of trying to deal with children who require extra attention because of their limited knowledge of English.
The children of American citizens have less time and resources available to them as a result.