Rich Lowry discusses the recent protests of illegal immigrants against enforcement of the laws here at National Review. It's worth a read.
Personally, I'm starting become annoyed with some of the rhetoric people keep using in this. Pay attention to who is saying it when someone uses the argument that these illegals will "take jobs that Americans won't." If you're a blue collar worker (whether native born or a legal immigrant), you should be insulted by that statement. From what I've read, the influx of ready labor has been driving down the wages in those fields as well, so you'd have even more reason to be upset about it.
This whole "debate" stinks. There aren't enough people willing to talk reasonably about it, and the media mugwumps aren't helping.