My car is licensed by a state, and insured under state regulation. Yet I can drive anywhere in the U.S., and in Canada, too. No "chaos."
States, and nations, for that matter, are very capable of harmonizing regulations. You logic would allow the U.N. to claim regulatory supremacy over anything potentially transnational.
So you're suggesting that there is no need for (uniform) traffic laws? You use an example of a very highly regulated activity producing no 'chaos' to suggest that no regulation is needed? Maybe we should get rid of all traffic lights and stop signs, that's just two of the thousands of regulatory devices, and see what happens. Get some common sense into your thinking.
BTW, this (use of the airwaves) is covered under international treaty. Has been for a long time. I don't see where the UN figures into the argument at all, and I don't see how arguing in favor of the wisdom of regulating the airwaves provides any 'logic' that gives the UN any part of this discussion.