Although I agree that ISIS should be bombed back “to the Stone Age,” this is probably not the most effective language to use. It necessarily suggests the remarks of Air Force Gen. Curtis Lemay, who once said the same thing as regarding North Vietnam; and that is a chapter in our history that a very large number of Americans would prefer to forget (and certainly not emulate)...
Carl von Clausewitz wrote in his book ON WAR that wars are won by breaking the enemies will to fight. Clearly, if we think about it the will of the American people to fight has been broken by our enemies abroad and politicians taking political advantage of American war weariness (which for most Americans means they're tired of hearing about it). Even as vile and cruel as ISIS is, and as much as they have shown themselves to be at war with everyone not practicing Islam as they do, our president is not willing to say we're at war with them.
My opinion is that we should use airpower to even the battlefield for those already fighting ISIS. Continue to transfer arms and ammunition to the Kurds and others so that they can hunt down and exterminate these foreigners who wage an unprovoked war against the people of Iraq and Syria.