This is actually a good question. In our society, stereotypes abound - especially where there are 2 ideologically polarized sides: few folks want to believe that his or her opponents in a heated battle of ideologies are normal, rational, thoughtful human beings who just happen to have a different view of life than they do.... it is much easier to demonize and dehumanize one's opponents in the more "heated" battles in life: that makes it easier to believe that they are right and their sub-human, sub-worthy adversaries are wrong!! It also makes it easier to ignore their point of view :-+). Progressives (the "PC" word for "liberals") therefore like to to view conservatives as ignorant, easily-duped rednecks, while conservatives are prone to regarding their more progressive antagonists as privileged, over-educated ivy-tower elitists fools. In truth, most progressives have a dual view of "conservatives": they divide them into the wealthy, self-serving elite conservatives on top, who are very intelligent and able to pull the wool over the eyes of many of the "ignorant", gullible masses, and then there are the duped masses who have been convinced by the wealthy elite business tycoons, to vote against their best interests (as in huge tax cuts for said wealthy business elite....). Another reason that "liberals" like to belittle "conservatives" (the terms are pretty abstract: most people are a blend of the two seemingly polar opposites, depending upon the topic involved) is because there is a very vocal, noisy subset of (mostly social) conservatives who always seem to be angry about something - and angry people almost always say really stupid things sooner or later!!