If they pay for the tickets and have to hit all six numbers. Drawing every day! Might pay for immigration enforcement....
No, a lottery to gain legal admission into the US. There would be many restrictions but there would be a way to gain admittance. Every illegal would have to register and those that didn't would be deported when discovered. A plan can be formulated but in my opinion, the first thing that needs to be done is securing the border. NOBODY gets in until we know who they are...