One of the main reasons that the US became so powerful and successful was because of slavery. Very easy to make a lot of money when you don't have to pay for labor. Its' continued prosperity also relies on one of the lowest minimum wages found in any developed country. For a lot of people to get very rich you need even more people who remain very poor, that's how capitalism works. Illegals are an excellent source of very cheap labor so it will only harm the US to crack down on them being able to stay and work. Only people competing for the jobs they do are trailer trash anyway! Arizona must have a lot of minimum wage earners for the illegals to be such an issue!!