One big problem the United States has with overthrowing countries in the Middle East is that their populations will fight to the end to protect their civilization, whereas Americans will give up immediately if our Flamin' Hot Doritos™ go up in price by 10 percent.
@existentialcomics you'd actually wonder if Trump has *any* understanding what kind of unlikely alliances you can create if you threaten to destroy a civilization. Mortal enemies for decades will easily unite to defend Hafez and Isfahan.