The several states have rights and laws that are enforceable as well do they not?
State laws do not have to pass the same federal muster because they are state specific. If there are laws on the books in AZ that make it a crime to be undeclared (no proof of citizenship), then enforce them accordingly. Anyone who is here legitimately generally has either a valid state issued ID, insurance, visa, green card, etc... If people can’t handle following the laws of whatever state they’re in as a visitor, then they make themselves targets.
There are any number of ways to deal with this insipid ruling while still accomplishing the same goal of booting illegal alien invaders out of AZ should Arpaio decide to do so.
BTW... I’m pretty sure Arpaio is intelligent enough to figure this out on his own.
“If there are laws on the books in AZ that make it a crime to be undeclared (no proof of citizenship), then enforce them accordingly.”
That would be SB1070 (http://www.law.cornell.edu/supremecourt/text/11-182#writing-11-182_OPINION_3), passed to make it a state crime to be here illegally. The Supreme Court ruled it unconstitutional.
Personally, I think Arizona has every right to decide who is allowed in Arizona. I would be willing to trade higher immigration from Mexico in exchange for keeping Californians and anyone from the NE US out!