IMMIGRANTS EMIGRATING
Reader Charles Taylor points me to this USA Today article on Census data confirming my anecdotal experience below: Once they get established in the United States, immigrants who come into the traditional gateways, including California, leave for Sunbelt states like Texas:
"More Hispanics are leaving California than whites," says demographer William Frey, who linked "white flight" from California and New York in the early 1990s to the surge in immigrants in those states. "Now, it's a middle-class flight motivated by cost and congestion."
This phenomenon means that immigrants in California will be disproportionately poor and unassimilated, adding to the other reasons why immigration is a hotter issue in California than in Texas.