The thing is, the journalistic trade is such a closed society, they honestly believe they are unbiased.
Yep. A fish is unaware that it is surrounded by water, and the press is unaware of how far left it is because they only work with like-minded people. They are also sanctimonious and regard themselves as some kind of priestly caste.
That might not be the case. And that might be why they are so intent upon trashing FOX. They know they have an agenda, not entirely shared by FOX. And so FOX is a threat to that biased and liberal agenda. And they are aware of that. That's why they . . go . . after FOX.