Part of the problem is that there isn't 24 hours of national news to cover, so they have to fill up time with Paris Hilton & car chases. The stuff that they pretend is national news, is mostly just the news in New York, Washington DC or Atlanta (the places where the stations are based). Stuff that matters to people in states like Utah is largely ignored except for the random times where they pick up an Elizabeth Smart story. That's the way it is though because the reporters are based in these bigger cities and there is a larger audience. You have the same problem the ESPN and college sports. They concentrate on the big eastern conferences and ignore the smaller conferences. It got so bad that the Mountain West Conference actually created its own TV station and dumped ESPN.
Anyway, most of what people complain about on Fox isn't "journalism" and they don't even pretend that it is. It's commentary. I'd equate it to the editorial page in a newspaper. There are liberals and conservatives on Fox. Some people just have a hard time letting both sides have a voice - or maybe they're afraid that there arguments look stupid when put up against the other side.