Your “round them up” idea is silly. Illegal aliens came here because of money. The “better life” so many people use as an excuse actually comes down to the fact that illegal aliens can make more money here than in China or Guatemala, or Nigeria, or Moldava. The easiest and fairest way to get illegal aliens to leave is to take their money. Strip them of all their assets, right down to their underwear. I don't mean to swoop down on them in the dead of night and deposit them naked across the border, but I do mean to seize all of their assets if they haven't left after a reasonable, but short, period of time. Americans don't care if foreigners legally have assets in the US, and kids born here are Americans, so distribution of assets and guardian care are acceptable, but after a reasonable time, 180 days say, if an illegal alien is caught in the US, then everything he or she owns belongs to the US government. You will see pickup trucks loaded with possessions crossing the border in no time.
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