Why does the US make a big stink about certain countries developing nuclear weapons?
The US is the only country that's ever used a nuclear weapon in war. And we start way more wars than Iran or North Korea.
If it's anyone that shouldn't have nukes, it's the US, since we can't be trusted not to use them and not to invade half of the countries on the Earth.
		
		
	 
It's really a very good question.
People tend to just accept power structures. The answer to why the countries that have them should be the only ones is because they're the only ones who do.
Then people make up reasons to fit their opinion - other nations are dangerous, and it'd be dangerous for us if we didn't have them.
There really isn't justice - more expedience in the logic. We decide other nations are second-rate because we have power to say they are.
On the one hand, there's some truth that any nation has risk to have them, and it's likely some other nations would abuse them more than the nations who have them.
But it's also true that the nations who have them aren't as perfect as they'd like to pretend they are.
It's a matter of time before some conflict will likely erupt into their use. The responsible thing would be to do what most presidents since they were invented said we should do, ban them globally. It's actually one of the most important things we should be doing, which is being ignored until it's too late, like leaving a loaded gun the kids play with.
But since when do some people give up an unfair power? Hardly.
Like a drunk driver rationalizes he'll be ok, our nuclear fans rationalize we won't have a nuclear war. They assume human nature has changed recently since it's entire history.
We should all be pushing for the ban - one our country committed to - to be done.