I guess we are taking action against the ME. Their states tend to support/help people fly airplanes into skyscrapers and drive vehicles on pavements through dense crowds rather than be so blatant as to develop ballistic missiles.
We took the soft diplomacy option with Iran, but NK is more advanced and supported by China, so we’re pussy-footing about because of the Chinese link I suspect.
It’s our own fault really (collectively in the west). We’ve set the precedent that in order to have a seat at the top table and have a say and influence in global affairs you have to be a nuclear nation, so we’ve set the goal for a lot of these small countries who want to have a fair say and crack of the whip to set out on the road to trying to get nukes so they will be taken seriously.
The only answer is a global disarming of nukes and dismantling of the global infrastructure and capability. It wont and shouldn’t happen unilaterally, so we’re stuffed.