No, the sensible thing would have been to have gotten rid of them ALL on BOTH SIDES in the heady years right after the Wall fell. Now a once-in-a-lifetime opportunity has passed, all because some people refused to let go of the Cold War. Now we're stuck with the fucking things, and more and more countries are desperate to get them because they see them as their only defense against a U.S. or Russian attack.
Oh, please. It shouldn't really be possible for someone to be that idealistic.
The once-in-a-lifetime opportunity to be rid of all nuclear weapons everywhere was gone the moment physicists realized that maybe such a thing would be possible. From that point forward, somebody was going to figure out how to make one and invest the money, because it's too good of an advantage to have. After the cold war ended, if everyone had agreed to get rid of all their nuclear weapons, the game would be to either figure out how to hide a few without the other side knowing, or how to build new ones in secret. It's simply not feasible to prevent this from happening, the policing power isn't there. it's the equivalent to software piracy in the torrent age. You can make it illegal all you want, you can have several people who either agree with the law or want to avoid punishment, but you really can't ensure that NOBODY will do it. Because you can't monitor everything and everyone all the time.
Another thing to consider is that nuclear weapons have probably brought more peace and stability than they've done damage. MAD actually works, and if it weren't for nuclear weapons being invented the cold war wouldn't have been just a bunch of proxy wars everywhere. It would have turned into World War III in the middle of Europe. The existence of nukes made the cost far too high, which actually promotes peace. The last time nukes were used where in Hiroshima and Nagasaki, when there was no threat of retaliation. Get over it, it will never be used again, and the only reason it will never be used again is because multiple people still have them, so it's not just a question of who can rebuild their arsenal quicker.