I happened to look some more at the Pew Forum's recent "U.S. Religious Knowledge Survey," and was relieved to find that one of the groups identified actually "knew less about religion" than some of the Christian groups:
The "nothings in particular" knew slightly less than the white evangelical Protestants, the white Catholics, and the white mainline Protestants. It doesn't really seem fair to say that "no one [among the groups identified by the study] is more ignorant about religion than a Christian."
Christians, in other words, are saved not only by Jesus but also by the nothings in particular!
