The stuff about Zionism may or may not be true, but there is a history of both anti-Semitism
and conspiracy theories in the footsoldiers/voters of the US Right.

http://www.indymedia.org.uk/en/2008/02/390828.html

America has a strong history of Individualism from before
Benjamin Tucker (the Founding Fathers are often quoted
by Libertarian types) and maybe would have genuinely
gone that way (especially considering
the lack of real difference between the corporatism of the
US and the State-Capitalism of the 'Soviet' Union) without
a mythical enemy to fight against (again, any real analysis/
comparison of US/USSR would reveal that the only difference
is the strength of the military-prison-industrial complex in the
US versus the One-Party nature of the USSR

http://youtube.com/watch?v=j1fH3YpQciQ&feature=related