Exactly my point, but let's start with the basics I guess first.
BASIC: Crossing the border without permission is a crime. It is illegal, it is against the law. You have cited you want to give these folks a path to citizenship so in effect you seek to reward criminals with citizenship opportunity.
I am all for folks that want to come here and melt into the pot with the rest of us. You know, folks that believe the most basic of ideals. Rule of Law.