Not trying to attack you here, but I would like to dissect some of the points.
The idea that "Christianity is under attack" is not completely without merit, because there are real reasons why Christians might feel this way (which I'll explain below). In reality a Christian might see something that doesn't fit with their worldview and then have a vague feeling that something isn't right. Looking for an explanation for their feelings the only option they're given is the Fox News narrative that there is a vast left-wing conspiracy perpetrated by the "liberal media". :rolli:
This is true. There's also a preoccupation with the way things are "supposed" to be, and it's easy to trigger defense reactions when reality doesn't jive with that vision.
In reality there are two small but influencial groups that are out of touch with the majority of America: the entertainment industry and academia. These groups often say/show things that are out of line with mainstream values, but it's really because they are out of touch instead of some vast conspiracy.
It should be pretty clear that New York/Hollywood entertainment is out of touch. Here's an innocuous example: before the show "The Office" there was almost no comedy about an office environment even though this is a very common environment for Americans to work in. The movie "Office Space" was pretty much it, and the show "The Office" really only got started because it was a remake of a British show. The Entertainment Industry as a whole really has no clue what the life of the average American is like.
You do have a point when mentioning that life in Manhattan or Los Angeles is different from that in Middle America. However, I don't think that media types are as out of touch as you assert. For one, there's the old vaudeville adage: "Does it play well in Peoria?" If you're going to get viewers' money, you're going to have to understand them at some level. There's a reason that for every Hollywood star, there's 20 niche actors scraping by on waiting tables - you only make the money when you have mass mainstream appeal.
The flip side to this is that people aren't drawn to the mundane, but rather the unusual (but not TOO unusual). The Office works because it's an office filled with very warped, unhealthy people, but done in a way that they're still relatable. You can't do that unless you have some serious writing talent behind it (see the suckitude of Season 6). Same with Office Space. However, there have been plenty of workplace comedies beforehand: Just Shoot Me, Spin City, WKRP In Cincinnati, Sports Night, and The Mary Tyler Moore Show are all good examples of the genre. In the end, you've got to go with what sells.
There's one more thing, though - when you hear a commentator go off about "New York media" or "Hollywood values", there's an element of code speech going on there. You can't really get away with saying "the Jews" outright in polite speech.
Then there is academia, specifically college professors. They have always been far removed from the norm of society, but previously it wasn't as much of an issue. However during the past couple of decades college enrollment has really picked up. So now the majority of Americans are being educated by a group that really has little involvement with mainstream life (and mostly has no desire to be involved with mainstream life). And it should go without saying that a university is generally a highly secular environment where religion is tolerated at best.
There are a few things going on here. First, anti-intellectualism has been a core component of American culture since the beginning. There's a couple of reasons for that; one, much of our immigrant population consisted of the outcasts of society, including criminals and political dissidents who would have reason to dislike the establish European elites, including the academics, and two, it runs counter to the peculiar brand of egalitarianism that Americans hold so dear. The modern "American Dream", that you can accomplish anything if you put your mind to it and work hard, doesn't much tolerate what academia represents. No matter what, the average college professor is much, much smarter than the average person, and there is nothing that can change this.
The second is that academics study things that are, of their nature, counterintuitive. Otherwise, they wouldn't be worth studying. So you'll have lots of instances of academic reports that run contrary to "common sense". This, understandably, can cause a lot of unpleasant emotions in people.
The third is that while campuses aren't anti-religious, per se, they are anti-dogmatic. Everything is to be questioned, including the most firmly-held belief. Empiricism and evidence are the watchwords on campus, instead of faith and doctrine. This skeptical environment can seem hostile to very-religious people.
On top of this, academics are usually the first to criticize a government's policies, which can feel disloyal to others.
Finally, there are a lot of professors that are arrogant asses.
So when people see both the TV and academia telling them things that don't gel with their values they know something is out of whack, but often they can't quite put their finger on it. Academia can't provide the solution, because they are part of the problem. The only explanation people have for this phenomena is Fox News. So they end up believing in the vast liberal conspiracy instead.
The thing is that working and middle class Americans have a lot to be upset and confused about, such as the radical shift in our economy that we're currently undergoing. There are many things that are going wrong, and it's hard to make a cohesive narrative about why it's going wrong. There are few things that people respond worse to than uncertainty.
Academia doesn't provide the solution, because that's not their jobs - solutions are the applied side, and not the research side. Academia does do a good job of what it's supposed to do: identify the problem, and the causative factors. Unfortunately, today, many of our problems are of our own causing, or are things that we have no control over, and those messages aren't comforting whatsoever. Humans have a slight tendency to want to shoot the messenger.
Meanwhile, Fox News is in the business of selling advertising to make money. To do this, they must get eyes on screen, and to do that, you must appeal to people's emotions. Fox is absolutely expert at manipulating people's negative emotions, be it xenophobia, nationalistic fervor, scapegoating (liberals, blacks, immigrants, the poor, etc.), dread (missing white girl syndrome), and so on.
The point is to get you mad, because when you're angry, you feel like you're right. It's how the Tea Party's also set up - a group of disparate people who don't necessarily have a cohesive philosophy, except that they're mad about things, and it's not their fault.