Ecoscience: Mexican Immigration to the U.S.

By Anne And Paul Ehrlich
Published on November 1, 1979
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PHOTO: MOTHER EARTH NEWS STAFF

Over the past decade, the vast majority of Americans have
become aware that population growth is no longer a
blessing. In fact, most people seem to have accepted the
conclusion–reached by the U.S. Commission on
Population Growth and the American Future–that the
nation has nothing to gain from an increase in the number
of its inhabitants. One sign of the acceptance of this fact
can be seen in the dramatic change in this nation’s
childbearing habits. Between 1960 and the early 1970’s, completed family size
dropped from
about three children per couple to approximately two
children.

A great many citizens rightly view the modification of our
national reproductive habits as an investment in the
future, and see themselves as exchanging the pleasures of a
larger family for the knowledge that the few children they
do have will stand a better chance for a
high-quality life. If the typical family’s size remains
close to what it is now, births and deaths will be balanced
by around 2020 and natural population increase will end.

Mexican Immigration: A New Threat?

But population growth can also be caused by migration.
Therefore, It’s not surprising that–since the
mid-1970’s–there has been an increase in public
concern about the pattern of immigration to the United
States, especially about the numbers of immigrants
coming into this country from Mexico. People have begun to
receive the impression (advanced by the media) that we’re
about to be swamped by a brown-skinned horde from
south-of-the-border. And that these illegal immigrants are
taking jobs from Americans and worsening our employment
problem, draining our welfare system, filling up taxpayer-supported schools with their children, and sending
huge amounts of money back to their homeland, affecting
America’s balance of payments.

All of these notions can be traced in large part to the
statements of General Leonard F. Chapman, Jr.–who
served as Commissioner of the Immigration and
Naturalization Service (INS) during the mid-70’s–to
the effect that there were some eight million Illegal
immigrants already in the United States, and that thousands
more were entering every day. According to a 1975 INS press
release, “Studies done for the INS indicate illegal aliens
cost taxpayers $13 billion or more annually….”
Superficially–with over 800,000 illegals apprehended
in 1975 alone (the vast majority of them from
Mexico)–the concern seems justified, and people like
Professor Garrett Hardin of the University of California,
Santa Barbara–who realize that this country is
already over-populated–see in this illegal flow the
potential undoing of the good that’s been accomplished by
the dramatic plunge in the American birthrate.

Since we, too, are concerned with the problem of
overpopulation, we began to study the migration from Mexico
about two years ago. Working with Professor Loy Bilderback
(of the Department of History, California State University
at Fresno), we interviewed illegal immigrants, members of
the Border Patrol, government officials, and academicians
in both the United States and Mexico. We dug through
official documents and looked at historical, cultural, and
economic factors–operating on both sides of the
border–that influence the flow of migrants. In
addition, we studied human migration in general, in both
its historic and its contemporary forms. As could probably
have been predicted, we found the problems associated with
illegal Mexican immigration to be astonishingly complex,
and the “facts” and impressions given in the popular media
to be seriously misleading.

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