The communists fight for the attainment of the immediate aims, for the enforcement of the momentary interests of the working class; but in the movement of the present, they also represent and take care of the future of that movement. but they never cease, for a single instant, to instill into the working class the clearest possible recognition of the hostile antagonism between bourgeoisie and proletariat, in order that the german workers may straightway use, as so many weapons against the bourgeoisie, the social and political conditions that the bourgeoisie must necessarily introduce along with its supremacy, and in order that, after the fall of the reactionary classes in germany, the fight against the bourgeoisie itself may immediately begin. - from the communist manifesto , karl marx, 1848 which government system is karl marx speaking out against?