USA has veto power in UN security council
USA has puppet countries in UN general, where they can bundle up and shield USA
USA is sending its representitives into all manner of international courts, so if there is some international court that could prosecute USA - there are American judges infiltraring it, who could block the decisions. And not just international courts, all maners of international organisations. Its expensive to have such a footprint inside so many organisations, because you need to pay a lot of membership and bribes, but Americans have a lot of money.
This is a very solid strategy, its called LAWFARE. Americans are masters of it. They also explicitly weaken international institutions who are outside USA, so that they couldn't have the power to prosecute US citizens. And other international organisations have Hearquarters in USA. So UN has headquarters in USA. Americans used this fact many times - for example, if Putin or Iranian president would want to go to UN and say something against America - they can't because USA could either not give them visa, or detain them if they enter USA. So the most powerfull international organisation that could go against USA - is IN USA ITSELF, so Americans have a lot of leverage. Its all by design, Americans are smart.
China is also studying this tactic and is already using it, they also just trying to outcompete USA in spending for international organisations membership, so that the heads of different organisations are just going to be Chinese in the future and those organisations won't turn on China on a whim.





