Jonathan has a thoughtful post about the problems that should be discussed in the immigration debate. It is worth your time to read the whole thing. However, I’d like to discuss the 2nd paragraph.
“You also have to add likely enforcement costs into the equation. These include grand abuses of civil liberties, national ID cards (which will be completely ineffective for their ostensible purpose), rampant criminal extortion of employers, etc. How does anyone propose to track down all of those illegals — house-to-house searches?”
Any discussion of enforcement must, by necessity, take in to account the application of force. This is an issue that everyone seems to be ignoring, willfully or otherwise. The reason why is probably because our border guards are already outgunned and certain to lose if there is a confrontation.