#1 - There are a number of fabs in the US. Interestingly semiconductors is one of the items that you need a truly skilled workforce to fabricate and thus it's still cheaper to do it at home.
#2 - ... that's a real problem.
#3: Rare earth elements. China's already got a stranglehold and it's already been doing things like banning export to Japan. In return Japan has been doing a lot of research into reduction or elimination of rare earth elements. We should be OK on this one.
Oil though... That's a real problem. EROEI is already way below peak and it's only getting worse. We're going to need to invent either really good batteries (which are in research now) combined with extensive deployment of wind/solar (which is happening now) or we're going to need some serious advancements in the nuclear realm - either small reactor technology, thorium, or fusion. Barring any of those we're going to need some kind of currently sci-fi/fringe power source to actually work (Hydrino, LENR, zero-point, etc).
If we don't get one of those three, or better all of them, then yea. We're screwed.