One of the more annoying things that we hear from liberals is whining about the GOP's ability to get the working class to vote "against its own economic interests."
It's annoying not so much because it smacks of a base-superstructure hangover, but because of the obvious lack of self-examination on the part of many of those who say this sort of nonsense. How many of the people who spout this claptrap are well-to-do lawyers, doctors, professors, or high tech executives? According to their own logic, shouldn't these people be voting for the candidate who's lining their pocket? Or do see themselves as suffering from "false consciousness" because they put aside their narrow economic interests and cast their ballots for the candidate that supports a woman's right to choose, tolerance for gays, and stem cell research?
Liberal doctors: heal thyselves!
The real point that liberals need to understand is that economic interest -- or, more pointedly, economic justice -- is itself a value that needs to be articulated and defended as a value.