Allowing illegal aliens to continue calling themselves "immigrants", will eventually turn Arizona into Mexico. It'll turn into a complete and utter shit hole.
The point of allowing foreigners to immigrate to the US legally. Is to provide a transition period where they adopt our language, culture and customs.
It also allows for school systems to budget and plan.
If it were up to me I'd land mine the border at the depth and width of one square mile.
I wouldn't even bother with a border patrol. If someone made it across, there'd be a green card sitting on a fence post waiting for them on the other side.