Not sure what you're getting at, but ISIS command consists mostly of former Iraqi officials that were sidelined after Saddam Hussein was ousted. The soil was initially fertilized by burning down Iraq.
The "fertile ground" that allows moderates to become radicalized eventually boils down to polarization. It doesn't really matter whether the rhetoric is coming from Somalia, Nigeria, Mali, Turkey, Indonesia, Libya, Israel, Europe or the US; as long as the discourse goes in terms of "us vs them", many people will identify (and act) as victims.
I was careful in my wording. I do grant that the initial war in Iraq catalyzed the creation of ISIS. What I was saying here is that the power vacuum we caused in Syria and especially Libya created a place where that seed could grow and thrive.
But anyway, that wasn't the main point. The real point was to show that it wasn't a neocon that started our wars in Libya and Syria - it was today's iconic Progressive who did that, and without any sort of Congressional approval at all. Those wars can't be attributed to neocons, they are the Progressives' to own.
The "fertile ground" that allows moderates to become radicalized eventually boils down to polarization. It doesn't really matter whether the rhetoric is coming from Somalia, Nigeria, Mali, Turkey, Indonesia, Libya, Israel, Europe or the US; as long as the discourse goes in terms of "us vs them", many people will identify (and act) as victims.