Fox is part of a circle of reinforcement. It doesn't just reflect the views of those who believe in it, it creates the views.
It is reinforced in doing so because it gains a greater share of the market. People watch the shows (even if they hate the shows being shown) and this is reflected in the ratings which encourages sponsorship via advertising. This allows the company greater resources and allows them to advertise more heavily, which of course leads to more viewers.
When it comes to bad entertainment, the best option is to ignore it. Just look at how The Passion of the Christ gained publicity from the ridiculous anti-semetic protests.
FOX isn't part of the solution, its part of the problem. If a station with the same business plan and a liberal or moderate stance appeared tomorrow, it would be as big a problem. Good journalism shouldn't be about ratings. FOX isn't journalism, its entertainment. If you want to know about the views of these people, read some of their journalism.
No idea what a Neilson family is.
Let us agree, there is no one single reality. Not upon this stage, not in this world, all is in the mind... imagination is the only truth. Because it cannot be contradicted except by other imaginations - Richard Matheson
There are no conclusive indications by which waking life can be distinguished from sleep - Rene Descartes