And since the news of today is only interested in the most extreme, that's the facts you'll find on Wikipedia.

Truthfully a much worse problem is that an average user cannot edit on Wikipedia. To edit on Wikipedia you need to have an obsessive personality, to constantly guard your edits and keep other editors from removing them.

And that bias is much worse than any other, you'll find a ton of information on matters that attract obsessive personalities, and much less on more normal subjects.