It strikes me as incurious to dismiss an entire field of thought because there were errors in a mathematical manuscript, especially when you clearly don't understand the fundamental concepts (I don't mean this as a dig. You just haven't learned them.). Marxism isn't the writings of a long dead guy in England in 1860. It's a living, breathing school of thought that's evolved significantly since then. What you're doing is akin to finding an error in Smith or Ricardo's [edit: unpublished manuscripts, not completed work] work (of which there were many) and using those errors to dismiss all of orthodox economics.
The revolutionary approaches have not succeeded thus far, granted. There is a branch of Marxism about revolution, but what we're talking about here is a description of capitalism. Marxist revolutionary activities have nothing to do with how potent that analysis is.
The revolutionary approaches have not succeeded thus far, granted. There is a branch of Marxism about revolution, but what we're talking about here is a description of capitalism. Marxist revolutionary activities have nothing to do with how potent that analysis is.