If it doesn’t work economically then the US is fucked and so are we. If trump ignores the economic impact of his adventures, he will be more than the worst US President ever. Putting a target on their backs won’t even matter in the downfall. He may have all sorts of plans but ignore the effect on the economy and he’s more a fool than many think.Idiot or not he's made it quite clear what the direction of travel is - the US using its economic and military power to get what it wants - and at the expense of traditional allies rather than rogue states. It may well not work economically. But I don't think that means it won't be tried. There isn't some magic authority that's going to step in and prevent it. The only hope really is Republican opposition but I think it's unlikely. Those poeple won't want to put a target on their backs.