Skip, the diff is that in this case, you have authorities quietly speaking to a store manager asking to see paperwork in the office. Employers have to have this by law. he isn't detained, he can walk away. If the employees are legal, they never talk to the INS agent. if they have a fake social, they've broken the law.
it's not like the manager is driving with a Cali ID and suddenly his ass is in the station for 8 hours as his woman tries to get a copy of his birth cert, ya know?
Still, I think if I lived among the crime in AZ, I might feel as you do.
And still, I believe if you were in cuffs for only having a Cali ID, you may feel as I do.