Potential hyperbole and the fact that Rushkoff was talking about programming more so than general computer knowledge aside, I still think there's a relevant point there. I personally feel that giving up all pretense of needing to know how my computer works would put me at a far greater disadvantage in the coming years than were I to do the same with my car. My car is very useful yes, but I don't use it to view the world, my country and its politics, my culture, my future, my finances, and make decisions based on those views.
Luckily, society (mostly) seems to have recognized that in the case of literacy and essentially forces everyone through it, instead of assuming that people are morons that can not be taught anything. Unfortunately, the same can not be said about a lot of recent technological development.