O'Really is Jerry Springer without the nudity, and intelligence. His only purpose for existing is to attack a specific set of people and their specific beliefs in a manner that will be beneficial to the party supported by his employers.
He appeals to the baser instincts in people by relentlessly attacking those who disagree with him. Thus harnessing the herd mentality in a digital circus with him as the freak in charge. Guests on his show are NEVER allowed to make a point which requires more than two sentences to complete. He shouts them down, humiliates and belittles them in true Salem Witch style.
A true mental lightweight. So gullible he probably believes half of what he says. Right off the top of my head, I can't think of a single figure in the media whom I despise any more than O'Reilly. Perhaps his complete foolishness will eventually marginalize him even among his legion of followers.
Boortz got his number,though, when O'Really had him on: he nailed his ass to the wall about the Atlanta prom, by telling him that the only reason O'Reilly was taking on the issue was because of his racial joke that he told regarding the black school he spoke at.
O'Reilly was stopped dead in his tracks, all he could do was to call Boortz a vicious SOB. To which Boortz laughed at, and he pokes fun at O'Reilly every day.