Even if we could get all the western signatories to do it, Israel having nuclear weapons in the middle east will continue to inspire regional allies to want some defenses. India is likely to keep them around as well as Pakistan, Iran is going to want to get them soon, I would honestly expect Ukraine to angle for it or at least a nuclear umbrella any chance they can... The pressure and global climate is not moving towards it.

So that's why I think first we need a reduction of overall tensions, and then the political will and public support for disarming can take place?