It is not a class of labor ... it is all digital labor. Do you or do you not understand this?
It is digital knowledge itself, and then all communication labor, and then all physical labor with robotics.
Is this clear to you?
Marx' whole idea of Communism was predicted on the fact that he assumed industrialization would lead to a post-scarcity society requiring virtually no work and a overhaul of how everything was owned and produced. Boy was he wrong.