Oh you can deny it. It was never on the agenda to turn these countries ito Extremist hotpots, you are trying to be wise with hindsight. You are then down to apportioning blame between the Wests omission of extremist elements and the ideologies that created them.
Or a oversight by those wishing...
So its all the wests fault, would you include Boko Haram as well?
Personally I think you are in denial about the root of the problem, I came across these types in the 1990s.
you find them were ever there is large numbers of Muslims. Heres one nicked in East London Today.
http://www.dailymail.co.uk/news/article-2953486/Anti-terror-police-arrest-32-year-old-east-London-suspicion-member-supporter-ISIS.html