Without getting into a deep discussion about different levels of government people with guns who can legally take your life...
It occurs to me that if you are in the United State illegally and don't want to be returned to your country of origin... Maybe don't break the law??? I mean, you don't really have to worry about the city police calling the federal police if you don't end up in the city police's hands in the first place. You're already on "borrowed time" the second your status goes from "okay" to "not okay," why push your luck by breaking laws?
Not breaking the law isn't all that hard to do. Hundreds of millions of people don't break the law every day. I'm not talking about breaking big laws like murder or securities fraud, but laws speeding and jaywalking and leaving diapers in the Wal Mart parking lot. (Okay, one of those isn't a law, but should be.)
And it seems to me that if you're an elected official upset that a person who gets booked by the local badges gets ratted out to the federal badges you'd be telling these folks not to get in trouble in the first place.
I can remember as a child in school that I would try to negotiate the severity of my punishment before I even committed the act I would be punished for. It didn't occur to me (or the teacher for that matter) to just not do the thing that would get you punished in the first place. It was like the teacher and I were both in agreement that there was no way I could follow the rules so we just had come to agreement on the punishment. And the most ludicrous thing about that situation is that I got to negotiate my punishment in the first place!
If you're not mowing what I'm growing here - your local politicians are negotiating the punishment because they see no way to stop the person from committing the crime. We're paddling upstream against the wind with a pair of chopsticks.