I would say though the ghost of vulgar marxism consistently haunts all political discourse to this even in places where at first glance Marx is the 'enemy' (American conservatism are fond of what might be termed 'reserve vulgar marxism' in their rhetoric for example).
Yes. Everybody is influenced by Marx, either directly or indirectly (influenced by people influenced by Marx). And some people have a revulsion to Marxism and are influenced by it to do the opposite. Marx has had enough of an impact on history that everybody's thinking is influenced by him.
