Lets face facts about immigration. In a deverse society and economy immigration and free trade is good...(in theory, but in theory if you walk from the north pole in any one direction you will cross the south pole half way back to the north pole...in theory).
What is the down side to illegals coming here and working, trying to better themselves and thier families. In prinicpal nothing, in fact ...LOTS.

Former Govenor Dick Lamm (Gov Gloom) writes a very clear and pointed editorial as to whats wrong with this. Check out the Rocky Mountain News Sunday edition April 3rd, page 4 E.
To quote Gov.Lamm from paragraph 9 of his editorial
"Americans pay in more ways than taxes. Cheap labor drives down wages as low-income Americans are forced to compete against these admittedly hard working people. Even employers, who want to wink at false documents, are forced to lower wages just to be competitive. In many ways it is a race to the bottom, fueled by poor people often recruited from more distant countries by middelman who profiet handsomely." end quote.

Govenor Lamm address what I was saying that there are good people who want to come and live here and better themselves. This is great, but come here legally, force those who hire the nonskilled labor at below market wages to give marketable wages. Punish those who refuse to be legal employers. Deport those who do not seek to be a responsible citizen and pay thier way.