As if i don't realise that?
Perhaps that's due to the American support for the House of Saud which was at odds with Osama Bin Laden and his family? You cant just look at Iraq and not look at the past hundred years of our pitiful foreign policy.
Its not just "if we hadn't gone into Iraq", its "if we hadn't promised Riyadh the world, promised Israel undying support, constant CIA coups in Iraq, Syria, Egypt, Libya, Iran, Yemen, Lebanon..., abysmal failure in Iran over oil, back-stabbed our previous coup partners..." the list is nigh endless.