I don't disagree. But at least with a nuclear arsenal we have a bit more of a chance to react and protect ourselves -even just by blowing ourselves up- than we do without it.
Aliens would use pesticides and we'd never see them coming. See "The Screwfly Solution".
And it's a great point- but still, we have more chances with some sort of plan to defend ourselves than without.
Doesn’t that defeat the purpose?
But you're right- determining any degree of consensus for such a decision would be nearly impossible.
Then again- extinction event.