Bomb the hell out of the Syrians? Surely they have suffered enough.
Iraq III? Maybe this time.... maybe....
Send the ground troops into Saudi? Quatar?
Acknowledging that some of ISIS / Al-Qaeda gripes do have some merit, stop interfering in other countries affairs, stop propping up dictators because they are "our" dictator.
Something else?
Unfortunately for the Syrians, my money is on bomb the hell out of them, trying to limit the number of "collataral damage" of dead women and kids, but hey, not our fault.
And so we go round the merry go round again.
Though fusion is a long way out, hypothetically, if we didn't have any reason to interfere and could just leave the Middle East to figure out its own problems, they wouldn't have a reason to see us as the enemy.
We'd have to make more electric cars and find a way to make them affordable to replace gas powered cars. Have electric car conversion kits to replace the engine and take out the gas tank and replace it with batteries. You got used gas powered cars as low as $500 and owners that can't afford electric cars so you have to do a government program for them to subsidize the conversion.
Getting off fossil fuels will help fight climate change as well. So it is a win-win.