Sentence:  And ideologists pride themselves above all on what we might call their ‘<WSD>totalism</WSD>'. Georg Lukacs, for instance, regarded such <WSD>totalism</WSD> as the outstanding characteristic of Marxism: 'It is not the primacy of economic motives in historical explanation that constitutes the decisive difference between Marxism and bourgeois science, but the point of view of totality', writes Lukacs. 
Meaning of the word marked with <WSD> tags:  A philosophy, ideology or belief system that is total in its scope, one that covers everything.