Not just built, but it also underpins the American economy today. Like most industrialized nations, the USA has a negative replacement rate(fewer births than deaths). If immigration stops, at best, the USA slowly dies out. Long before that though our economy crumbles from the ground up.
Not just built, but it also underpins the American economy today. Like most industrialized nations, the USA has a negative replacement rate(fewer births than deaths). If immigration stops, at best, the USA slowly dies out. Long before that though our economy crumbles from the ground up.