I get you, really, but I don’t think Marx could’ve given robots as an example. I was paraphrasing from Estranged Labour.
Besides, robotics aren’t always treated with the carelessness we are. The capitalists own the robots as they were machinery, and you know how scum are when it comes to their stuff being damaged.
In these instances it’s better to ask for source so that upon their failure we can throw quotes like “My source is that I made it the fuck up!”