For the record,
There was no ISIS under George W. Bush, I'm not defending or criticizing him in this though, clearly, ISIS arose around 2011 when Obama, against the words of all of his advisors, Pineda and so on, withdrew our troops.
The place is a hornets nest.
As an example, take Libya, the UN-recognized government took heat in the past 2 weeks for supposedly having Jihadist types in their troops, you know what they said? "Well, if you had placed your Nato troops here, after effectively knocking off Gaddafi's regime, we wouldn't have that problem".
So, yes, to our ways of thinking, the place is a hornet's nest. No easy answers.... and in Libya, whether these guys are officially Jihadists, Islamic militias do exist in the opposition as well.
And we are of course, much mightier than Iran but if you are fighting Iran in their own neighbor's yard, Iraq, Iran can cause a lot of damage as we saw through Soleimani.
Anyway, I was about to post myself and I'm glad you caught this story.