Aaron Sorkin is why people hate liberals.
There's a (potentially) very good essay to be written called "Why People Hate Liberals." Short answer: we're annoying! We're always telling you that you're destroying the planet, contributing to oppression, killing people halfway around the globe, or just not caring enough about poor people. And you don't want to hear it. You just want to turn on American Idol and relax after a tough day at work.
This essay can't be written by a conservative. (And it really really really can't be written by David Brooks.) It needs to be written by an honest-to-goodness liberal who spends a few months talking to actual people — and then tries to figure out why they hate liberals even though they don't really hate liberal ideas all that much. Somebody get on this, OK?