At most a tiny fraction of the blame....like less than 1%. Anybody that thinks that the majority of blame goes to Bush the Lesser has some serious issues and shouldn't be taken seriously on the important topics of the day.
Agreed.
Anyway George Bush is nothing now so any discussion about his responsibility is quite pointless.
Also like others said, many factors contributed to the rise of ISIS, but they are the ones doing horrible things, so the emergency is to get rid of them before trying to put the blame on anyone else.
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