Yeah but our country would still survive. China would get in return over 10,000 of our warheads and be turned into a sheet of glass. The missile defense system consists of both the land and sea based systems and each Arleigh Burke carries 96 missile interceptors furing the SM-2 and newer SM-3.
And at present you'd have to be nuts to trust national defense to that system. Maybe in 10 more years of development but now? Hardly.
I don't think so. Don't you remember how we were obliterated in the Atomic Wars of the late seventies, when a Soviet Union that could reach the entire United States (with far more missiles than 300) destroyed us and our culture?