They feed him flawed, spun, sometimes false "information", KNOWING his strong family history of psychiatric disorders and his personal history of addiction and instability. They insulate him so that he can't access the kind of ordinary reality-checking that would let him see that he's going off the edge. THIS IS THE MORAL EQUIVALENT OF FEEDING HERSHEY BARS TO A DIABETIC AND THEN HIDING THE INSULIN.
If this man is not helped soon, by somebody, the outcome is not likely to be good. He will either hurt himself, hurt someone else, or suffer a breakdown so severe that he will need hospitalization and lose his career.
And FNC won't care; they'll just find the next brittle psyche to exploit on-air.
Tucker