"Taking our jobs"....do you really have any data to support that?  Are there tons of people lining up to pick fruit and scrub toilets?  Perhaps, but you would really need to prove that point....

Test:  if it really is just about illegal immigration--the process--and not that we have too many of "them," then just issue green cards to everyone already here.  Would the antis really go for that?  Of course not.  

It is about a loss of culture and too much Spanish being spoken, and too many signs in Spanish, and teaching kids in Spanish in the schools, and letting people take driver's tests in Spanish.....It is about the need to establish English's superiority in the face of the threat of Spanish inudating everything....

It is about seeing cars on blocks in front yards, and too many people living in the same home--actual examples cited by the Arizona legislator responsible for this statute.....

I posted a link to a CNN report, in another thread, about a steel plant owner in Phoenix that fired 12 undocumented workers and can't replace them. Not even ex convicts want the job and he is losing 4-5 million dollars a year.

So the one with a bad premise is you. This is about hatred of Mexicans.

The writer of SB1070 has connections to Neo Nazis. here
Russell Pearce who introduced SB1070 forwarded a pro Nazi email to his supporters. here and he was caught visiting Neo Nazis at a rally. here