Employers make big profits while the taxpayers pick up the tab. Way too much money at stake here. Who are the politicians going to listen to? The taxpayers or the wealthy employers lining their campaign fund?
Easier for a politician to make a few speeches, round up a few aliens for show and continue to take the campaign contributions
RW I agree with you that your predictions are what WILL happen but I disagree with you that protecting the border isn't important.
Personally I would have no problem with giving everyone in the country today amnesty and protecting the border now and not allowing more in unless they're willing to pay up.
In the more libertarian-constitutional government that I want with under control spending and taxes I would want wide open borders as that's what would be best for free market capitalism. However we don't have an economy or a government like that.
A wide open market you describe means America will "adjust down" to accommodate the poverty moving in. American without a doubt will shift into a third world country, as we are moving in that direction faster and faster. Yes, if you look at Americans debt and blah blah blah, things are looking very bad for us despite our boarders and "free markets" being wide open.
A *more* "free market" is a good thing, but you have to confine it to your own country or else you lose... unless you are the poorer country.