I don't really care that much about this debate, primarily because it is clear that at the present time NGNM85 is not really thinking in any kind of direction that might lead him to change his opinion. But I would like to reply to a couple of assertions made about Marx. I predict that NGNM85 will just turn around and say that he doesn't care what Marx 'really' thought, because he's not a dogmatist like me, I'm just another silly ideological/textual purist with no relation to the working-class and all the other epithets we've heard before, but I think these are worth mentioning.
You have perverted Marx's analysis of the English factory acts here. The chapter on the working-day comes after the chapters explaining the production of absolute surplus-value through the extension of the working-day, and the consequent struggle between classes over it's length. His analysis relies on his exposition of the internal laws of motion of capitalist society, and on the relative strength of the various classes. It is not a case of giving a moral exposition of the value of the factory acts 'well on the one hand, then on the other', but of giving a proper analysis and explanation. You are probably incapable of seeing this because on the one hand you probably haven't read Das Kapital properly anyway, but also because you conceive politics in terms of reasoned choices made by enlightened individuals like yourself, which you believe can be impacted by making arguments such as those you make here about supporting Obama in the upcoming election. Marx manifestly did not see things in this way.
There is political participation, and then there is political participation. Marx (And Engels) believed that every class struggle was a political struggle, he also believed that as a consequence the working-class would by necessity have to form itself into an independent class party, a union of the class, he did not believe in the value of convincing enlightened activists to vote for one or another candidate in order to validate his own sense of self-importance.


