Well, I disagree with you on that. I think biz in AZ and the rest of the US got used to cheap labor and were more than happy to let those people take cheap wages. Nothing to do with fair or kind.
My point: Seal the borders. We are decent in this country, we’ll figure out the small potatos.
For the right, it’s about cheap labor and for the left, diversity. We are stuck on the twin horns of expediency and politics. However, it is too easy to make us feel guilty about illegals and this has caused a great deal of our problems.