Right, but it's also not your job to draw false dichotomies and go out of your way to imply moral equivalence just so you can slather a patina of "fairness" over your work.
Even the best (especially the best?) journalists have to editorialize, whether they come to grips with that fact or not. The alternative would be to present an infinity of viewpoints on every topic one covers in any piece one writes. At some point one has to exercise discretion on what gets included and what doesn't, on what gets covered in detail and what doesn't. I don't think it's right or realistic to try to abdicate that part of one's journalistic responsibility.
Dedicating half of your story to, for instance, a crazy windbag representing a tiny minority for the (professionally misguided and misinterpreted) purpose of an unbiased piece is where the insanity comes in. If in researching a story you find that there are some dissenting views, you include a quote from them somewhere in the piece, but you don't turn your piece into that one guy or one group versus the original focus of the story. That's sloppy and misrepresenting the issue because you've mistaken "unbiased reporting" with "50/50 equal time for two views."
As a journalist (one who just finished interviewing someone I find personally despicable but who's done something newsworthy and interesting so merits coverage) I like to think that my readers are smart enough to suss out their own positions on the things I write about. It's not my job to decide which of the different views on a topic I cover is "correct" or "right." My job's to describe them and how they relate to one another and let the reader do his or her homework on which one they think is right.
Drew Curtis has a great chapter in his book in which he rails against the media's penchant for giving equal time to "crazy people." He makes a great argument, but the problem is that it comes from an assumption that your readers are too lazy and dumb to make up their own minds about an issue, so we should be selective in how we treat different sides of an argument. That doesn't sit well.