Weights of a B-2
Empty: 162,000 lb (73,482 kg)
Typical Takeoff: 336,500 lb (152,634 kg)
Personally I think Stealth is a unique niche that only the USA requires and that China, Russia and the EU will need to gain for their superpower bids. The stealth plane make it possible for you to fly around an proxy nation with pretty much 0 threat of detection. Also the F-117 is old and outdated, the B-2 is also old. The F-22's stealth is really to stop the Russian fighters from getting a lock and making the Russian Air to air missles less effective.
What makes us believe that the USA doesn't posess a far superior stealth technology than currently exsists. They built a frigin stealth ship in a city harbour an no one knew about it. The F-117 and B-2s were de-classified long after there were already fleets of them.
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