Moreover, the only way Trump can be certain the economy will continue to grow at all in the years to come is by letting in more immigrants, and the same could be said about most other developed countries. The US workforce will decline significantly over the next 20 years, if you include only those born in the US with US parents (exhibit 11.1). This would obviously be a rather dramatic U-turn on his declared policy on immigration, but low or no immigration would most likely be massively damaging to economic growth.
