The day one is detonated, it will be the only thing anyone will think about ... which is why we need to apply the biblical vision of "turning swords into plowshares" to nuclear weapons. Here's some important information on the subject.  And here's Tyler Wigg-Stevenson's personal testimony on the subject.
By the way, if you think nuclear disarmament is impossible, South Africa did it in 1991. They saw it as something to leave behind along with apartheid, just as previous generations saw slavery, the inequality of women, and child labor as things to leave behind. With God, what looks impossible isn't.