It's interesting, in my experience, here in the boring midwest, that is not at all my experience. The media is having less and less of an effect on people, exactly because they've overplayed their hand. There is one guy in my golf group, who about five years ago, made a case that the media wasn't really biased. Today, he doesn't try that angle anymore, but it's because he's generally laughed off the tee box!
The change seems especially noticeable lately.
It might sound silly, but I think a big factor is just a natural change in baby boomers: we're older and wiser now and believe "half of what we see and none of what we hear" as my grandfather used to say.
How many articles are preceded by AP or NYT?