Oh, so your immigration plan includes provisions that if you break the law, but remain undetected for long enough, then you are ok to have the entire thing overlooked.  That's a nice slap in the face to those who come over and go through the process the correct way and follow all the rules.  So if 20 years ago, some person burned your house down but was never caught.  That person went and got a job and had a family but then somehow, confessed to burning your house down, you feel that no punishment should occur.