I believe the breeding rate is much higher than 2 to 3.
But yes the birth rate is a factor this thoughtless tank appears to have ignored.
Does the Washington Post ignore the "breeding rate" too? Their estimate was 40 million:
http://www.freerepublic.com/focus/f-news/1640987/posts
I suspect, like many of our elites, they assume that anyone moving to the US, in a few years, has the same behaviors as the rest of the US, ie, lower birthrates. This is what happens when you don't live amongst the *regular* people....you don't have a clue about human nature.
susie