As someone who studies society and is interested in matters of religious faith, I get irritated by what I call moral nostalgia.
I'm not against nostalgia, per se, though having come of age in the late 70s, early 80s I don't have much to be nostalgic about (disco?). Moral nostalgia, however, holds that things used to be more moral, more right than they are now. The Christian version of it says that American society used to be more "moral" and "Christian". Expressed negatively, America is undergoing sever moral decay and who knows if society will survive. For a hilarious example of moral nostalgia (from Trrish).
Here's the problem with moral nostalgia... it's just plain wrong. Not a little wrong, a lot wrong. Sure some things have changed for the worse, but a lot more things have changed for the better. This is demonstrated in a series of social indicators complied by Michael Kruse. He makes a compelling case that 1981 was the worst year in recent history and that things have been getting better since then.
So, in the past quarter century, things have gotten better in terms of less poverty, longer life expectancy, less crime, less suicide, less abortion, and fewer high school dropouts.
Things are getting better. Deal with it.