I don’t have a lot intelligent to say about Arizona’s new and highly covered law except that there should be at least two standards in public policy: policy shouldn’t be a) futile or b) mean.
I’ve heard people on the news describe Arizona as “libertarian” and this should be challenged a clarified a bit. Libertarians weight freedom very heavily in justice disputes, over other issues we typically consider under justice such as welfare and virtue. Constraining the movement of labor is inconsistent with that position. Since Robert Nozick has unfortunately passed away, we can’t ask him, but the law is a priori a taking from personal liberty according to the strictest application of libertarian principles.