Quick thought about a quote on page 812:
There is a saying: Conservatives seek converts, liberals seek heretics. And: Democrats fall in love; Republicans fall in line.
There's a tension between these but it's a resolvable tension. Regarding the first point, it fits with history: Liberals trace their roots to the Puritans, who had a morality code to enforce, and oh did they enforce it! Conservatives trace their roots to the Scots-Irish, who have preferred revivals and conversions. They sin all the time and oh do they need redemption. Puritans sin, but they do so as blots on uptight perfect lives. They should know better, they know it, and they'll never let anyone forget it. The right, well, they're raisin' hell, ya know? Of course they need redemption. It all fits the history.
(For the record, I still prefer Puritans. I grade papers for a living.)
Of course, when you seek impossible purity you'll never find it, so in order to feel like you found it you'll have to fool yourself, and fools fall in love. And then you'll fall out of love.