If we can leave them alone we do , lots of areas of the world need intervention and we mostly stay out of it Africa for example. Ignoring it is not an option if you want to continue to have oil priced on dollars vs gold or other currencies . People want to take the European approach and talk about it while sipping coffee in a detached manor. They can because oil is not tied to their currency directly. I doubt most people even understand the ramifications to the US if it changes. You won't be living anywhere near how you are now . That leaves us with a shatload of shatty options.