The "you" refrence was general, not specific. When the Russians are a free and a growing ecomic power, the Chinese will see them as the primary threat in the years to come. Why worry about the corrupting capitalist nation on the other side of the Pacific when there's one right next door?
NaW.
(These will be interesting times...)
This 'phylosophy' is a compilation of idealistic dialectics and materialistic... materialism. Marx and his followers are one of many schools who tried to fit recent scientific discoveries into classic phylosophical systems and even into religions.
There is nothing specificaly applicable to society and economy, except that economy is driven by material interests. What's new? Adam Smith, if I remember the name right.
"Dictatorship of the Proletariat" stuff is just high-falutin' cover the despots used for killing off their enemies.
This is a dangerous misconception. Indeed, the 'Dictatorship of Proletariat' is understood by the West mostly as a Lenin's practical application. Lenin had poorely organised (just from the farm folks mostly!) proletariat up to grabs - and he utilised this slogan.
Western working class is not that easy to drive crazy into revolt - and there another tactic is used. State Regulations, State Protection, State Control - you shall know it well.
But the outcome is the same - Total Governmental Regulations... All as in Marxism, which you call 'unrealized and unrealizable'. Socialism it is called by Marx, and this all-mighty government supposed somehow magically to die out.
Be careful with this 'pure unrealizable' Marxism! You (and I) can find it just around the corner one day.