That can be fixed by raising the cost of lying, rather than accepting it as the norm with consequences.
Humans have a tool for this, it's called reputation.
The more we accept, say, that all politicians are liars, the more both the honest and the listener suffer.
We should be outraged when someone has been shown to lie. It should be a resigning matter.
But if you're confirming people's biases, particularly regarding some "other" being the enemy (this week it's muslims in NYC), then the truth is going to take a back seat to that warm feeling of self-righteousness.
It's curious that you only mentioned Fox.
Many of my progressive friends think that the NYT and ABC, CBS, and NBC shouldn't have audiences either, for pretty much the same reason.
I agree with him = he's honest.
I disagree with him = he's lying.
Very few people care about object evidence that goes against what they believe in.