what they don't realize is that they are liberals and what they think is liberalism is actually a type of right-wing populism pushed historically by the progressive party, often as a front for christian groups. liberals are all about free speech, free markets and individual rights. crucially, they're strongly in favour of a separation of church and state.
what these idiots have succeeded in is little more than to confuse people about words and concepts that they don't actually have a good understanding of. if you watch the show, you're left to conclude that liberals are a type of fundamentalist christian.
rather, a liberal is exactly what stone and parker are, and their target of ridicule is religiosity - bordering on what engels called utopian socialism.
http://www.youtube.com/watch?v=hriKiBbw3nU