Your proposed system requires a world government with real powers of enforcement. It is not in the interests of the USA, China, Russia, India, Pakistan or France to do this. Absent wholehearted cooperation by them this cannot happen. If you got all of them on board you might be able to get the rest of the world on board.
In the world we live in, and will continue living in until there is a world government there are bad people everywhere and some of them work for other governments, who can and will protect them. This doesn't even touch on the fact that your/my/any human values are not universal, and universal law is about universal enforcement. Whoever wins the last war gets to tell everyone what to do. That's what world government is.
Your proposed system requires a world government with real powers of enforcement. It is not in the interests of the USA, China, Russia, India, Pakistan or France to do this. Absent wholehearted cooperation by them this cannot happen. If you got all of them on board you might be able to get the rest of the world on board.
In the world we live in, and will continue living in until there is a world government there are bad people everywhere and some of them work for other governments, who can and will protect them. This doesn't even touch on the fact that your/my/any human values are not universal, and universal law is about universal enforcement. Whoever wins the last war gets to tell everyone what to do. That's what world government is.