A-A,
It is not a criticism of anything to say that it does not talk about something other than what it talks about.
And you have philosophized what Marx says about freedom and necessity, which is really quite trivial: in any society, there is a certain amount of work that needs to be done in order to meet the material requirements of existence; after that is finished begins the free time that humans have for other things.
In a rational society, the “realm of freedom” would expand with the increasing productivity of labor and the ability to produce more use-values; in capitalism, it is the opposite: the ability to produce more use values leads to poverty for the vast majority.
It is really unfortunate that so many look for some grand “meta-narrative” of history in Marx. Maybe trying to explain something as banal as why workers’ paychecks are never enough to meet their needs is just too banal for most intellectuals.



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Marx's Capital was a giant leap for mankind's base of knowledge.
And I don't think that is a bit of an overstatement.