Ok. Go arrest all 12 million illegals tomorrow. Where you going to put them? How are you going to feed them? How will you find workers to fill the jobs they now hold?
You're in a dream land.
Every person living in this country has broken laws. According to your logic, we should rigidly pursue and punish to the fullest extent every single citizen.
But that just isn't the way it works and I'm darn glad that it doesn't.
That seems to be your solution and it seriously lowers my assessment of your ability to process information.