As long as you build an order around independence of countries and diplomacy (instead of, say, force) any organisation will only be as useful as countries are willing to follow and any structure can only be as good as the ones in charge are willing to go.
In consequences there are many flaws and a lot is stuck in post WW2 thinking, but I doubt there is a realistic chance of anything overall better.
The current U.S. administration tries to reshape things by disruption, we will see how this goes, but I doubt this will earn trust and buy-in from others. Thus not lead to a stable and "better" system. (While better, of course, is not globally objective, which again is key to the problem)
In consequences there are many flaws and a lot is stuck in post WW2 thinking, but I doubt there is a realistic chance of anything overall better.
The current U.S. administration tries to reshape things by disruption, we will see how this goes, but I doubt this will earn trust and buy-in from others. Thus not lead to a stable and "better" system. (While better, of course, is not globally objective, which again is key to the problem)