Amnesty should be granted to those who helps strengthen our country.
The law set by the U.S. government abetted law breaking by providing loopholes such as the I-245s, amnesties (in 1986), and making it easy for people without legal immigrant status to land jobs. It's like saying "yeah, don't break our laws but if you DO break our laws, then you can get a job (oh, we won't check) help build our economy while you file a I-245 or wait for another amnesty". If the government was really serious about enforcing the immigration laws, they could have done what most other countries have done; make it impossible for the illegal immigrants to financially support themselves by monitoring employers and not providing any loopholes. Illegal immigration problem is the outcome of the U.S. government's aiding and abetting of it.
Of course, everyone's a victim. The Americans as well as the illegal immigrants who's heard the success stories of the illegal immigrants before them. Somewhere, the line DOES have to be drawn. But with mass deportation, there are so many lives that would be completely destroyed (both American economy and families) thanks to the mishaps by the U.S. immigration system.
Let them close the border, make it so that nobody can ever slip through the cracks ever again, get rid of the loopholes, make it impossible to get a job without thorough background checks, let them cut social services to those who hasn't paid their taxes, setup a payment schedule for those who can't pay their penalty fees all at once or let them earn it by accumulating community service hours (I hear there are a lot of bridges that need to be rebuilt), get rid of the violent criminals, and let those who are already here provide strength to our country.