[Ghost of Philip Marlowe]

I was of the understanding that the repopulation rate of US-born citizens was close to 2.0 per couple, that the numbers you cite are in addition to this (thus the census-cited increase from 280 million to 300 million, app. 20 million immigrants, legal and illegal, in addition to replacement of native population).

Do you have a link to evidence that states that the 2.0 replacement rate includes immigrants, illegals and those born to immigrants and illegals, which would also indicate that native-born citizens and those with generational rooting in America are not at replacement levels?

[kabar]

Do you have a link to evidence that states that the 2.0 replacement rate includes immigrants, illegals and those born to immigrants and illegals, which would also indicate that native-born citizens and those with generational rooting in America are not at replacement levels?

The US fertility rate is 2.09 children born/woman (2006 est.) The population growth rate is 0.91% (2006 est.) The net migration rate is 3.18 migrant(s)/1,000 population (2006 est.) --Source CIA factbook.

The US population growth rate would be about 0 were it not for the net migration rate [immigration].

Check out the US Bureau of the Census POPClock and you will see that we add one international migrant (net) every 27 seconds. With births and deaths factored in as well, we gain one person every 12 seconds.