The extraordinary Mexican migration that delivered millions of illegal immigrants to the United States over the past 30 years
has sputtered to a trickle, and research points to a surprising cause: unheralded changes in Mexico that have made staying home more attractive.
A growing body of evidence suggests that a mix of developments — expanding economic and educational opportunities, rising border crime and shrinking families — are suppressing illegal traffic as much as economic slowdowns or immigrant crackdowns in the United States.
Douglas S. Massey, co-director of the Mexican Migration Project at Princeton, an extensive, long-term survey in Mexican emigration hubs, said his research showed that interest in heading to the United States for the first time had fallen to its lowest level since at least the 1950s. “No one wants to hear it, but the flow has already stopped,” Mr. Massey said, referring to illegal traffic.
“For the first time in 60 years, the net traffic has gone to zero and is probably a little bit negative.”The decline in illegal immigration, from a country responsible for roughly 6 of every 10 illegal immigrants in the United States, is stark. The Mexican census recently discovered four million more people in Mexico than had been projected, which officials attributed to a sharp decline in emigration.
http://www.nytimes.com/interactive/2011/07/06/world/americas/immigration.html?hpThis plus the fact that the Obama administration has deported many times more people than Bush or any other administration ever did.
Not exactly an "abysmal" record of immigration law enforcement, at least by the current administration.
The republican states (and all the states passing these immigration laws are republican-run) like Alabama that enact these immigration laws do it for partisan reasons. Republican politicians know that the history of their economic performance is abysmal. Rather than have people suffering economically focus on republicans and (synonymously) rich folks as the cause of our economic problems, they distract them with "Watch out for the poor immigrants! They're out to get what little stuff we left you!"