"Similarly, they will ask the next Dem president: are you willing to send the US into depression during your administration? We didn't think so."
They would be willing to create a global bloodbath to achieve their aims. They might not be willing to provoke a bloodbath that would result in the eradication of Islam with the US left standing at the end. I'm assuming at least some rationality in the sense of them wanting to achieve their objective, rather than victory-less suicide