I think if these so called "refugees" get sent to an internment camp in Alaska in the dead of winter, cutting off all phone calls to their folks back home, and separating the men from the women (no breeding)......the cold temperatures of Alaska might do the trick.  Alaska is part of America.  Beggars can't be choosers.  They are desperate to come to America, send them to Alaska to wait for their hearings, and see how many wish to remain there 4+ years for their hearing.