Osama bin Laden and Muammar Qaddafi would respectfully disagree. Actually, not so respectfully, which is why Obama killed them in his first term. And the US suddenly becoming a second-rate superpower over the next four years is unlikely to happen, but if it did, it would be a damnation of the American economy having been starved for tax revenues, and not an inclination on the part of Obama to dismantle the machine.
If anything, Obama has proven rather too quick to pull triggers.
This all points to one thing, and one thing only: Mitt's inability to stop lying about something, even when the facts are clearly against him.
Next up: race relations, no doubt.