Look I believe that any that any plane can be shot down even F-22. Remember F-117 the Americans before 1999 made movies presenting as a super weapon. The same happens nowdays with F-22
http://www.youtube.com/watch?v=oZ_vwXwf5uA&feature=PlayList&p=C64EF560BD1327E9&index=0
You are correct, any aircraft can be shot down.
The F-117 had already been announced as being headed for retirement before the loss over Kosovo. The Serbians did well to take it down, but they were aided by the fact that the mission profile had been flown through the same flight corridor several days in a row.
This being said, the idea that 30-40 aircraft would present anything but a series of targets to a 1,000 plane NATO effort is just simply silly. The aircraft would not have been significantly superior to the MiG-29, nor would the pilots who flew the MiGs become more skilled in a Serb-built aircraft, and the Fulcrums were very roughly handled by the NATO forces.
Excepting a 5th Generation Stealth fighter (which today means the F-22) vs a non stealth fighter in BVR, when other rules apply in the engagement, the Fighter v. Fighter quality is a factor but far from the most important. Pilot quality is an even greater factor in any fight, proper airborne command and control is still more important, but numbers matter most of all. A pair of F-15C vs. eight MiG-29s (assuming the pilots of the MiGs are reasonablly skilled) is a bad situation for the Eagle drivers, even though a F-15C will, in a one-on-one fight on paper mop the Fulcrum up without any problem.
Something you might want to consider.