The only way forward I see is for the major powers to agree to dismantle their program. Yes that means the U.N. So this will probably never happen. As a result I see absolutely nothing happening of any significance except a lot of talk and posturing.
I wasn't aware that the UN had nukes. You are probably right about the US never dismantling our program, only pacifist want us to anyway.
An invasion to occupy and send soldiers down into their bunkers to dismantle the program does not necessarily require the UN or anyone to use nukes on them. A conventional invasion could accomplish it. Doesn't matter because it will never happen anyway. Nothing will be done except talk.
So I guess I don't understand your point.