Most artists who write political lyrics, or lyrics that challenge the status quo and make you think never got any airplay in America. Not on commercial networks. Well maybe a little bit in the 60s, but the ruling class learned their lessons, and they won't let it happen again.
The networks make their money from advertising, so they're not going to play stuff like "Who Are The Brain Police?" or I'm The Slime by Zappa. I've never heard Nina Simone on mainstream radio. Things are mind numbing here at this point. You just hear Freebird, Stairway To Heaven, and More Than A Feeling 365 days a year.
Millions of "regular folks" listen to commercial country radio here in the states. They feed you tailor made corporate country music with all the familiar themes. Nationalism, love for beer, pick up trucks, and the pseudo patriotic war glory anthems by singers like Toby Keith. This is accompanied by syndicated right wing talk radio programs by Rush Limbaugh and Michael Savage. The brainwashing is very effective on tired, frightened uneducated working people who are getting poorer every year. Too tired to think? The scapegoat baiter's have all the answers for ya!
A great example of this, and a sad moment in recent history was the vicious Nazi style attacks on the popular county act the Dixie Chicks when they spoke out against the Iraq invasion. Country music stations around the nation banned their records, and Nazi style public record smashing and burning took place.
The famous Hermann Goering quote rings true in the land that defeated Fascism.
Naturally the common people don't want war; neither in Russia, nor in England, nor in America, nor in Germany. That is understood. But after all, it is the leaders of the country who determine policy, and it is always a simple matter to drag the people along, whether it is a democracy, or a fascist dictatorship, or a parliament, or a communist dictatorship. Voice or no voice, the people can always be brought to the bidding of the leaders. That is easy. All you have to do is to tell them they are being attacked, and denounce the pacifists for lack of patriotism and exposing the country to danger. It works the same in any country.”