It's not impossible, it's just wrong.
Is it possible to combine President Bush's principles with some combination of future incentives or enforcement, or does legalizing so many doom any proposal like this to failure?
IMO, legalizing any illegal currently here is wrong and sends the wrong message.
It has been proven time and time again, that legalizing illegal aliens encourages more illegal immigration.
IMO, a guest worker program is feasible if properly implemented.
There are currently 10+ million illegal aliens here in the US. There are currently 20+ million aliens out there in the world that are currently waiting in line to come to live and work in the US. Those 20+ million have never broken our laws. Why not let them have these so called jobs that Americans will not do?
Why reward criminal aliens and punish law-abiding aliens?
Why have plea bargains? Why not try every case?
The answer, of course, has to do with resources. Some problems are too large to be comfortably dealt with by simply using brute force.
I would agree that the illegals should be penalized somehow relative to those that have never broken the law. But there are ways of doing that short of having them leave the country. I did think that this was a possible shortcoming of the President's proposal, and hope that Congress does something about that in the upcoming months/years.