Read Michael Yates’ essay that he just posted, Shane, and make special note of his point that “every slogan has a context, circumstances that give rise to the words and make them effective…”
The breakdown of social order and provision of essential goods and services, the relationship of forces between the classes, and the level of mass revolutionary consciousness and militancy in the fall of 1917 favoured the Bolsheviks and is what gave rise to their slogan.
Put Lenin and Trotsky and the other outstanding Bolshevik leaders in Brooklyn today, and see how far that slogan would carry them in present circumstances. Probably as far as sloganeering unrelated to the actual context of living mass struggles has carried Prof. Cox.