I respectfully disagree. I think whomever the U.S. votes into office as their next president, is about as relevant to solving this particular issue as what type of bread I prefer for breakfast. This is not a political problem. It's a societal problem, rooted in counterproductive beliefs held by majorities of people in middle eastern cultures, not just the radical Islamist fringe. The only way to solve the problem is to painstakingly convince people, one by one, that some of the things they were taught in school, or picked up simply by living in their societies, may not be as wise as they initially thought. It's about hearts and minds and beliefs.
The U.S. has unfortunately squandered any capability they might have had to convince anybody in the middle east about anything. The only reason the U.S. remains at all relevant in the region is due to their influence over Israel. At this point, the only productive thing the U.S. can do is to remove themselves from the equation entirely. The people who will ultimately solve this issue are the intellectuals and spiritual leaders that live in middle eastern societies. Unfortunately, their voices are currently drowned out or censored, precisely because they live in societies that can't cope with dissenting opinions and free speech. This issue literally sits at the centre of what is holding their entire culture back.
You may be right that my attempts to get people to rethink their views are futile (although my personal experiences suggests otherwise), but you won't stop me from trying. If all reasonable people tried to extend a hand to someone who believes differently, and embraced any opportunity to discuss our differences, I'm sure that would ultimately represent our fastest route to success. It has to start somewhere, so why not at least try?