There exists a certain subset of anti-liberal that, if you boil down their gripes, seems to have a chip on their shoulder because liberals make them feel dumb.
Beyond that, the subtext is hi-larious. If you read between the lines with most ultra-conservative brown shirt 'pundits,' every time they say 'Liberals are elitist because they think they are superior to the REAL American, the SALT OF THE EARTH, the BEST Americans!' they are really being everything that they supposedly detest in 'liberals': namely, elitist and pseudo-superior.