I don't know many, either, and those whom I do know are wonderful people who have nothing that I can perceive in common with fundamentalists or any of the stuff I critique above. But the general culture in the US is kind of permeated by that unstated (or very loudly stated) historical culture. I am, myself. My parents may have been out and out atheists, and my grandparents kind of functional atheists (I don't think any of them believed in god, though in their younger days they went to various denominations of Protestant church). But my great grandparents were either Catholic or Protestant, and you can't be in this country without learning some of the basics of Judeo-Christian history, ethics, language, and metaphor. I know far less about Buddhism, Islam, Hinduism, or other world religions, even though I've actually studied Buddhism and Hinduism, in college.

Your views sound refreshingly materialist; I like that, though I understand people for whom spirituality is important.