You wouldn't need an international org..If the US had a federal boxing commision that would only allow one sanctioning body at US venues and recognize only one ranking system then whatever that body was would end up being recognized internationally simply b/c championship fights in the US is where the money is at. We really need a federal commission for a number of reasons
1. Make all state orgs fall under one body and use unified standards
2. Regulate the type of promotional and manager contracts a fighter can sign...IE no rights on future fights
3. Setup a better pension
4. Make a legit ranking system with meaningful mandatories
5. Get rid of shady sanctioning fees etc etc

it would make a world of difference.