"It is, unfortunately, as anti-elitist and non-aspirational as you can get, but it does explain the red states."
First, you just argued that TV shapes society, and perhaps tacitly argued for censorship.
Now, to the main point: how, exactly, does this explain all the bad with capitalism? Perhaps I could argue is the failure of the socialist education system. There are also a great many high quality shows available. Are you suggesting the TV in North Korea or China is somehow better? They have stupid reality TV in Europe, too. Freedom allows people to do all manner of things, good and stupid. Who gets to decide what should be allowed on TV if you think something like this shouldn't exist? It's society and the mood of the people in it who bring about the entertainment available.
The mantra of business today is: "The most valuable thing in today's economy is people's attention." Draw that attention to things more valuable, interesting, and true, and you will better society itself and take that money from people like MTV.