When the president says such things, people might bear in mind exactly how his administration has chosen to welcome them--by raising taxes on exactly the things Washington supposedly wants immigrants to do: work to support their families, play by the rules, and become citizens.
The construction was of concrete tilt-slab poured flat on the ground and lifted into place; it incorporated walls of glass and long narrow glass slits (bear in mind, the house was in the middle of miles of open agricultural land, with a climate to accommodate Schindler's experimental design).