The desire to set up a worldwide caliphate by violence is an idea that goes clear back to the Koran. Its implementors come and go. ISIS is the latest. There will be others.
Anyway, it's just one example. Could have said the same thing about the Jonestowners -- lots of people wanted to leave but the leadership was fanatical and could not be reasoned with. Like Boko Haram. Or Al Shabaab. Don't have to reach very far in history to find such a thing.
Since we're playing the "you don't know that" game, you don't know that it wouldn't have gone the other way. Maybe the Arab Spring might have taken hold in Iraq. Maybe the UN might have found a better diplomatic solution if the US hadn't pre-empted them by invading.
One of the criticisms against the US invading was that the US had no plan for what to do after the military victory, and that Hussein was a stabilising power in the region; remove him and chaos would ensue if things weren't handled carefully.
And there were and are people who want to impose Sharia violently
And instead they got people who wanted to impose Freedom(tm) violently... quite violently. I wonder if it matters to the average Kurd if their loved ones get beheaded, gassed, or "collateral damage"'d.
I wanted to write something about the country, that in many ways forgot the true meaning of word freedom... but then I realized you're probably just trolling, aren't you :)
What a weird example. ISIS wouldn't exist today if it weren't for the US destroying Iraq as a regional power.