Its not that complex. Terrorists are not born they are created. When you go out of your way to create a situation that pretty much validadates the terrorist orginizations world view you will create more of them. When you dump all your resources into creating them in Iraq your not hunting them as effectivly else where they will propogate else where.
When you attack Iraq(that had no Alquida) and ignore Saudi Arabi(that is practically run by them) you will allow them to propogate.
Totalitarian Iraq was very anti muslim fundimentalist, thats why Huesien was so popular with Presidents Carter, Reagan and Bush I.
Dont you know any of this Nuke? Its open knowledge and common sense.
So yes. The invasion of Iraq has and will create many "terrrorists". Thats what war does, it creates enemies. The rest or Iraq would have normally been more against Muslim Fundimentalists. But since the enemy of your enemy is your friend, they are getting lots more support there then they would have other wise.
Just another reason why the invasion of Iraq was so stupid. Its almost like it was done inspite of all reason and only silly lies will defend it.