The New Patriarch is the Welfare State:

Comparing Fertility in the U.S. and Home Countries

Analysis of data collected by Census Bureau in 2002 shows that women from the top-10 immigrant- sending countries living in the United States collectively tend to have higher fertility than women in their home countries. As a group, immigrants from these countries have 23 percent more children than women in their home countries, adding to world population growth. Among the findings:

Among Mexican immigrants in the United States, for example, fertility averages 3.5 children per woman compared to 2.4 children per women in Mexico.