O’Reilly is Mr PC. He is arrogant, pompous, and annoying.
I make it a habit to not watch his show because he is a loudmouth and believes his opinion is the only one with merit. In short, he is an idiot not worth my time.
No, you have it 100% completely backwards. The people who host purely liberal or conservative shows are the ones who believe their opinions are the only ones with merit. Because O'Reilly always brings guests on who vehemently disagree with him or with each other, he proves that he respects and gives voice to a variety of opinions. You're free to dislike his aggressive personality, but I prefer to watch entertaining shows and not snoozefests where people do nothing but monologue endlessly or be "polite" and "civil" to each other. Yawn.