If you do that math then you need to do it for non-immigrants as well in which case... his argument stands. If you want to go back 3 or more generations, then e

If you do that math then you need to do it for non-immigrants as well in which case... his argument stands. If you want to go back 3 or more generations, then effectively all Europeans are immigrants so the math falls apart. The definition of terms is key because without it the math is meaningless. ...Basically, immigration is a net good, economically, as we have known for centuries.