Bin Laden lists a rather long litany of grievances stretching all the way back to the crusades. He also blames the US for East Timor's independence[0], not a very terrible crime unless you believe in Islamic supremacy. Are you seriously suggesting that bin Laden would not have become a racist mass murderer had the US not helped overthrow the Iranian government?
No, that's not what I'm suggesting. I'm suggesting the events in Iran and the ideology of Ayatollah Khomeini are some of the many influences on his ideology. I think this would be obvious to anyone arguing in good faith, so I'm out of this conversation.