It’s fascinating to think about the number of PUs (procedural units) it takes to make a modern tool. Something as simple as a modern hammer must number in the thousands and a mobile phone in the millions or billions.
You might find the essay "I, Pencil" by Leonard Read interesting. It's told from the point of view of a pencil who talks about the complexity of his own creation and all of the components involved in the process
It's just ideological drivel. People never had any difficulty to cooperate on such level.