Even if you concede all those points (which I won't) the entire Marxist system relies on the labor theory of value which was smashed by Eugen Böhm von Bawerk in his book "Karl Marx and the Close of His System". No one has really bothered to follow up on it since it was so definitive.
That his theory lives on is a testament to the degree to which people a.) never learn anything ever and b.) the intoxicating nature of what he proposes.
That his theory lives on is a testament to the degree to which people a.) never learn anything ever and b.) the intoxicating nature of what he proposes.