Build the wall and get back to DACA in 7 years.
Since only 20% of DACAs have high school diplomas (average age 27) and up to 25% have no working knowledge of English (wait...I thought America is the only country they've ever known), what are they really "contributing"?
Do it by percentage....first ten percent of wall completed...do ten percent of Daca....until you hit a hundred percent....