: What enobles the proletariat?
: Why will they forever choose what is good and right?
Why will the capitalists?
: What moral code do they possess that is so strong as to corral the greed and envy common to man?
What 'moral code, etc., etc.' do the capitalists possess?
: Will the proletariat "relinquish its political supremacy" when its human code of conduct has run its course and decayed into anarchy?
Will the capitalists relinquish their political supremacy when their human code of conduct has run its course and decayed into anarchy?
Actually, we already know the answer to that---1929 in America, 1999 in Russia, etc., etc.!
: Maybe John Lennon knew something of history.
All he knew was that he was going to support whatever system made him a rich man.