The most practical way to crack down on illegal immigration is to crack down on the employers. If there are no jobs then the illegal immigrants stop coming and those here will leave.
The employers say they need the cheap labor and cannot get American workers to fill the jobs. The reason the labor is cheap is because the government is paying for their health care and social services. The government is subsidizing the businesses that hire the illegal immigrants. This is business welfare.
American business will do disgusting things for cheap labor. In this case they are relying on government subsidies to meet the needs of the workers they cannot afford on the wages paid. Then they complain about taxes being too high. In the past it was slavery.
I think you've come to exactly the conclusion, immigration screws American labor. It isn't any free care, but their desperation that drives down their labor prices. This is a repeating theme throughout American history. They used to import Chinese workers for building the railroads in the 19th century, and paid them half what the American workers got. And the Americans got plenty pissed off too, just like we are now. But the Robber Barons love it, they loved putting their boot-heels on the necks' of American labor.
And you have to remember, and understand, that globalization is the flip-side of the same coin. Can't hire immigrants--well just shut the factory down, and send it to communist china. Hate communism in one pose, then praise sending American jobs to a communist country, better yet, a dictatorship. How does that sit with your bullshit meter. Ross Perot was right, how about that, and Democrats, sadly, have jumped on this train of anti-protectionism, and Obama seems to be in the Hoover phase, unwilling to jump the train of idiot policies, just yet.
Third technique for killing off American labor--demonize them in the media. How often have you heard talking heads dismiss, and attack unions, the only power workers have in America, or anywhere, to bargain for a decent living. But the media says, they wanted too much, and we needed wage slaves, not workers who made good money. So we'll say screw-you, and move to Myanmar, or Taiwan, and find some puddle-drinking, grindingly poor folks to do your work.
Fourth, they extended credit, but that was just to fill the increasing chasm of American consumerism, to make us all think there wasn't anything wrong. But there was. Americans accounts dwindled, along with their jobs, and their pay. Credit card debt spiraled. Eventually, like last night at the mall, stores were empty, and it looked like a ghost town.
It is, the end result of 30 years of republican strategy, based on nothing but greed for the top slice, the "supply side," the top five to ten percent richest Americans. It is where "freedom" in the republican definition takes us, to the poorhouse, to a depression. Banks having problems? Give them money. That's supply-side, and it keeps labor down. Demand side allows at least, like in the Cash-for-Clunkers, the lower and middle classes to benefit, along with the rich, to whom, the money eventually levitates anyway.
And where, on the "liberal media," is the discussion of renegotiation of these onerous, anti-American, "free" trade agreements? With official unemployment at ten, and unofficial unemployment at 19 percent, where indeed, are the talks of the solution, of bringing our labor home, and sending the Mexicans back to Mexico, so they can lobby to solve their own problems, with corruption, and their own huge income gap, which created the problems there.
Where, indeed? It is AWOL from the conversation, the most obvious thing, to solve unemployment, is nowhere to be found.