@hawkeye10,
Factually, it is the State of Arizona that is screwing itself (and the undocumented immigrants have nothing to do with it).
This week Americans from American elected officials in California, to American truck drivers to American entertainers (now Shakira is speaking out) have been as furious as I am about this law-- and we are all talking payback. There have already been canceled conferences (Arizona depends on its conference and tourism), travel bans to Arizona from American organizations and American truck drivers refusing to go to Arizona.
Arizona is already the butt of jokes from Colbert and Stewart to Saturday Night Live. Even conservative Republican politicians are balking (hearing Karl Rove "regret" this bill was a special treat).
Then there will be the millions of dollars of lawsuits. Paid for by the taxpayers of Arizona. Oklahoma lost millions of dollars for their anti-immigrant law-- and Arizona's is far more extreme then theirs.
I wish they hadn't gone and done this-- but as long as they have, I am going to enjoy my schadenfreude.