How can illegal aliens be in "the shadows" when each one receives thousands of dollars in benefits each year?

Out from the shadows: We are told — or rather, instructed — by the Beltway ruling class that our duty as Americans is to bring illegal aliens “out from the shadows”. Never mind that we can find illegal aliens wherever we turn.
Illegal immigration costs American taxpayers...
How can illegal aliens be in "the shadows" when each one receives thousands of dollars in benefits each year?