Ladia,
I think it's more pernicious than that. Look at Rush, he supports a corporate philosophy, and corporately driven organizations like Heritage, and they, in turn, support and likely feed him, 'the truth'.
This incandescent light bulb nonsense is just an example. My nephew thinks these bulbs are going to kill his family or some other foolishness. His father gets it from Rush and the "American Right".
Then we have individuals making statements about shopping bags and blaming it on the environmentalists.
This is a historically classic example of how the masses are controlled by the media and it's very dangerous, as I'm sure you must know.
We look at figures in history like Pol Pot and ask how can this happen in a society? This is how it happens. If we study the speeches of despots they always pit one group against another... with them ultimately benefiting in the end.
These talk show hosts are literally dividing this country and the xenophobia they create, the 'me and others not me' can only damage a society that then becomes ripe for plunder.
Polarization of a society is the first step to despotism and that's what is going on here. People no longer think for themselves, they just parrot what they hear and when they hear and repeat polarized blame we have fragmentation of a society, hatred, etc.
That's what we have now in this country and again, it's very dangerous.
Again, George Santayana's, 'those who do not learn from history are condemned to repeat it'
Rob