It can't happen here.
I'm in perfect agreement that American immigration law should be modeled on Mexico's, which, by the way, is pretty much what most countries in the world have implemented. It appears fair to honest immigrants and tourists, but protects Mexico first. Which is as it should be, for them and for us.
But Mexico doesn't have a business community dependent on cheap, docile foreign labor. I'd be willing to bet that if they did, they'd wind up looking just like us.
I once tried to get a job in Mexico (legally) and learned that unless you know someone, it's damn near impossible.