International migration is projected to surpass natural increase (births minus deaths) as the principal driver of U.S. population growth by the middle of this century, according to three new series of population projections released today by the U.S. Census Bureau. This scenario would mark the first time that natural increase was not the leading cause of population increase since at least 1850, when the census began collecting information about residents' country of birth. The shift in what drives U.S. population growth is projected to occur between 2027 and 2038, depending on the future level of international migration.
This is a very misleading statement. Sounds like a version of the hockey stick view of earth temperatures.
Since this country started having European immigration in the 1600s, the expansion has happened with both native-born and immigrant residents. This census report would have us believe that immigration was a minor factor before 1850! Come on! It doesn't pass the smell test. I spend a lot of time on genealogy and family history research, and know that America has always had a large portion of its population growth because of people coming here to settle.