1 billion people a year is 2.7 million people per day.
At that rate, transporting 11 million illegals would take them a little more than 4 days.
When I was a kid growing up in W. Tennessee I would occasionally accompany my grandfather to the Post Office. And I could never help but marvel at the official poster on the wall that declared there was a $15,000 penalty and serious federal prison time for swiping or damaging the pencil that was left there for public use.
You'd better believe that pencil got all my attention.
Fine every employer $100,000 per day for using illegal labor and they'll self-deport so fast that you'll get dizzy just watching them.
No help from greyhound needed.