Quite a few have chimed in along these lines. I think they offer a fair complaint. The problem, of course, is that whenever one begins a sentence “liberals think” or “conservatives believe” you are automatically being unfair to some liberals and some conservatives because neither camp is ideologically or intellectuallyhomogeneous. Anyway, the email:

Jonah– Your correspondent says that liberals want a “more equal”
world. But it’s not true. He can’t cite any Democrats saying so,
just Thomas Sowell. In fact, liberals want greater equality of
opportunity.
I read the Corner because I have much more exposure to liberal
conceits than conservative ones in daily life. So now I know that
conservatives are equally smug, self-satisfied, and unwilling to
engage with certain unpleasant facts. It is a great disappointment to
see the Opinion Duel, which could be a place for engagement, made into
a place to show off for the home crowd.
Also, your correspondent backs up Chait’s point– he wrote that
liberals are driven by empirics, while conservatives are driven more
by ideology. Your correspondent wrote that “people are seeking
different ends.” Are you endorsing this bit of relativism and
conceding Chait’s point? (“There’s no such thing as empirical truth–
tax cuts are good!”) Or just passing it along?
It is a common conceit among conservatives that liberals want wealth
redistribution. But there’s no evidence of that in the actions of
Democrats, unless you caricature support for a given proposal as a
desire for naked wealth transfers.