i believe a government that will use nukes to oppress its citizens, disobeying rules of discrimination set forth previously, may need to be taken out with or threatened by another faction, who has obtained the necessary "arms" to bring this about. the second amendment was written to ensure that the populace could defend itself from tyranny, if tyrants possess nukes, should they be banned from those opposing the tyrants... when you outlaw nukes, only criminals will own them.
the discussion of nukes in the hands of people is a straw argument....