ZOMG!!!! They're Gonna Get Illegals For Code Violations, Too!!!11!!!

Some of my left-leaning friends are up in arms that the new Arizona law allows officers to check immigration status for code violations as well as traffic stops. One guy on a thread even argued that borders should be banned. I'm not making this up.

I understand the pro-illegal immigration people being up in arms that a state has finally gotten fed up with lax enforcement of immigration laws and is doing something about it. But seriously. Why must states sit idly by while the feds do nothing about enforcement, which upwards of 70% of Americans want done?