I reworded the poll so it no longer prejudges the extent to which the events have happened already. One could easily claim that Christianity was decisively driven from public life, and America stopped being America, with the universal adoption of PC and multiculturalist rhetoric during the Clinton administration. If Christianity can’t be viewed as anything of general significance it’s not part of public life, and if you can’t talk about anything particular in connection with America it’s not a country, it’s an ideological concept.
There’s a personal and subjective element in questions like this, especially with regard to the choice of historical markers. Larry Auster has argued, for example, that America ceased to exist in early 1999 with the failure of the Clinton impeachment and the U.S.-led war on Serbia. Whether or not it’s possible to be so definite—Mr. Auster still calls his website “AmNation.com” for “American nation”—it seems clear that 1992-2000 marked the definite public conclusion of one thing and the inauguration of something very different. America has always been a decisively religious and Protestant country, for example, but a recent poll says that between 1993 and 2002 the share of Americans who said they were Protestant dropped from 63 percent to 52 percent while the number who said they had no religion—many of them former Protestants—went from 9 to 14 percent. When something like that happens so quickly with regard to something as basic as religion it means that people feel a shift in the identity of their society big enough to make them look at themselves differently. And it’s that kind of shift with respect to the most fundamental things that would justify the claim that “America” no longer refers to the same social and moral reality it once did.