The left-right divide in America is, unfortunately, unbridgeable. There are three reasons. First, we are divided by our vision of what we want America to be. The right believes the founders' vision was brilliant and moral, that bourgeois middle-class values are superior to alternative value systems; that rights come from God, not man; and that the state must be as small as possible. The left (not liberals) shares none of those values. Second, we are divided by the means we use to achieve our vision. Given their different ends, left and right obviously differ on what means to use to...