Yeah, I'm not sure he's aware of where bin Laden and al-Qaeda came from or who trained them, nor of our history of sponsoring out and out slaughter of political opponents (don't watch The Act of Killing if you ever want to feel good about being an American again).
No American program of massive top-down force against a social problem has ever succeeded, because we don't have good maps of how to convert coercive force into successful outcomes. There might not be any effective routes to map at all.
I hope you're joking, Battuta. I'm an international relations major and have taken four college courses on the subject, not to mention have read countless scholarly journals and books about American foreign policy in the 20th century. I know almost every technical detail in the lead-up and execution of both Operation Ajax and the Vietnam War. Are you really so opposed to anyone who dares disagree with you, even slightly (which I haven't even done), that you must instantly jump on a bandwagon on make condescending statements about how I don't know about the coup in Iran or our Vietnam policy?
I'm well aware that a good deal of the anti-American sentiment in the Middle East (and to a lesser extent Latin America, though that is another topic entirely) is caused by Operation Ajax. However, there is little evidence to suggest that the Islamist movement wouldn't have occurred regardless of whether or not we overthrew the government of Iran. Islamic extremism was on the rise well before we overthrew Mossadegh.
The Muslim Brotherhood and other Islamist groups started gaining momentum in the early 20th century. These groups spawned the masterminds like Sayyid Qutb, who vehemently opposed the United States and secularism well before any American regime change in the Middle East. This is to say nothing of America's support of Israel, or the fact that the Soviet Union was playing the same game we were, backing anti-American dictators in the region, like Yasser Arafat and Gamal Nasser.
Have I argued in favor of Operation Ajax or even our Vietnam policy? No, in fact, I have long argued the opposite. I was a strong proponent of forcing a peaceful settlement between the French and Viet Minh immediately following World War II, coupled with economic and political assistance to the newly independent Vietnamese state. I even wrote essays arguing against American intervention in both conflicts for my class and received a 100% on both essays. So where exactly does this theory of yours that I supported regime change in Iran or Vietnam come from?