You have to look also to the media, where you have a vast majority of the loudest and most influential political voices in America media from people who came from the entertainment world.
I think it has other roots, has to do, in part, with a general anxiety in contemporary life... nuclear bombs, inequality of possibility and chance, inequality of goods allotted to us, a kind of general racist, unjust attitude that is pervasive.
Country fans need to support country music by buying albums and concert tickets for traditional artists or the music will just fade away. And that would be really sad.