Even trying to follow the existing law is punishable by exile without trial. You can go to all your legally appointed court dates, follow every rule in the book, and get snatched and deported from the courtroom the next minute.

If you are in this country illegally to begin with, then yes, going to court and following procedure will still result in deportation and a permanent ban on entry. While following the post-crime procedure is indeed laudable, the prescribed punishment for flaunting the immigration laws of the US is being barred from entry.