Humanity might have been safer without nukes. I think it's more accurate to say that humanities safety would have been less variable without nukes. No chance of

Humanity might have been safer without nukes. I think it's more accurate to say that humanities safety would have been less variable without nukes. No chance of nuclear war, but almost a certainty of WW3, and WW4, and... It's not quite as much of an unalloyed good as you're suggesting.