I just posted what follows on a thread about Hillary Clinton's turn towards conservative populism -- which denies the existence of class warfare and plays up social divisions instead. But that thread's already sinking out of sight, so I thought I'd try giving what I wrote a thread of its own:
The roots of conservative populism go back to the Nazis, who denied the relevance of class warfare and depicted German society as an organic whole, with all its members cheerfully working together, each knowing and accepting their proper place. Instead of battling their bosses, Germans were encouraged to turn their resentment against "parasites" -- outsiders who fed on the social organism without being a part of it -- which mainly meant Jews.
This "parasites" model later got picked up by the John Birch Society types and slightly modified in the process (emphases mine):
http://books.google.com/books?id=Md1aRhWNk1QC&pg=PA175&lpg=PA175&dq=%22john+birch+society%22+parasites&source=web&ots=HnO96sGKOa&sig=rivifB3ylI0SOPyVkOtwnfGATFw&hl=en
The John Birch Society and the Liberty Lobby are the two pillars of the Hard Right that evolved in the late 1950s and grew in the 1960s. Both groups blend populism, nativism, and conspiracism in the classic model of producerism. Like all producerist movements the Birch Society and the Liberty Lobby consider the "real" patriotic Americans to be hard-working people in the middle-class and working class who create goods and wealth while fighting against "parasites" at the top and bottom of society who pick their pockets.
http://www.publiceye.org/rightist/milnatbl.html
This temper tantrum is fueled by an old tenet of conspiracy theories: that the country is composed of two types of persons - parasites and producers. The parasites are at the top and the bottom; the producers are the hard-working average citizens in the middle. This analysis lies at the ideological heart of rightwing populism. The parasites at the top are seen as lazy and corrupt government officials in league with wealthy elites who control the currency and the banking sector. The parasites at the bottom are the lazy and shiftless who do not deserve the assistance they receive from society. In the current political scene, this dichotomy between parasites and producers takes on elements of racism because the people at the bottom who are seen as parasites are usually viewed as people of color, primarily black and Hispanic, even though most persons who receive government assistance are white.