I wouldn't say "nearly all", but quite a lot of it, yes, and probably a larger fraction since 1945. That's the point.
I don't think we should restrict the word to everyday living, but if we did, I could point to Hermann Hesse, Kurt Vonnegut, Ayn Rand, and plenty of others.
You know the drill - If it's worth saying, but not worth its own post (even in Discussion), then it goes here.