Breaking a law is not a reason, unto itself, to deport somebody. Would you like to be deported because of a speeding ticket you got twenty years ago. Understand, if you are not a citizen, regardless of whether you are documented or not, you can be deported at any time, and no reason need be given. Deportation is not the legally defined punishment for being undocumented. In this light, I'm baffled why you racist hide behind the whole legality argument. Just go whole hog and boot everyone out you don't like if they happen to not be citizens.