To truly understand your common household liberal, you've got to understand what's going on in their head (surprisingly easier than it might seem). It's easy for people to define their enemies as simply the opposite of themselves, and because liberals are emotion-based life forms, they define themselves by their intentions rather than by any thought-out ideology (they're "good people", they "care"). Liberals care about the poor, so their enemies "don't." They care about old people, so those who disagree with them must not. They're generous so you must be greedy.
The obvious problem with the liberal worldview is the simple fact that we don't live in a fucking cartoon, Goddamnit. Everyone has good-intentions. That's a pre-requisite to joining the conversation. We might disagree slightly on what “good” is, but no one who's civic minded enough to be engaged in politics wakes up in the morning and says "Yeah, I'm going to do some evil today." Nobody wants kids to starve, or old people to die on the street, or the fucking environment to be destroyed. Jesus W Christ, imagine waking up each day and believing that's what the world is.
If liberalism had a mascot, it would have to be Lennie from Steinbeck’s “Of Mice and Men.” A big dumb bastard constantly walking around in an overly emotional state, without any real understanding of what’s going on in the world; always needing someone else to clean up his messes. And just like Lennie, they end up squeezing everything they care about to death. You can think of this point in American history as the end of the book. The small government crowd is sitting liberalism down on the bank of a river… and doing what we should have done a long time ago.