The US total fertility has been below replacement levels (2.1) since 2007. It currently stands at 1.89 as of 2011.
This is the essential information that people ignore. Demographics are destiny.
We already see a more feminized society, especially among the millenials. As birth rates decline and we attract more immigrants to fill the labor shortage the result is pretty easy to see. The USA will be transformed into a euro style socialist/fascist state. The experiment in individual liberty and govt subservient to the individual will be replaced with the individual as a child controlled by the state.
That isn’t actually a measure of fertility at all as it excludes all the murdered children of abortion.