Maybe its because conservatives tend to have real jobs that dont allow one to sit for hours in coffee shops reading the communist manefesto...I would posite that most of teh people who hang out in coffee houses reading books are mainly college student/professor psuedo intellectuals who have the time to sit around drinking 3whilst waxing philosophical on the "virtues" of communism.
Who reads the Communist Manifesto for hours anyway? The thing is , what.. 100 pages max?