It's not a fantasy -- look at AlQaeda's turn towards attacking America - it was caused by American troops on Saudi soil
The problem is that you are stuck in the fantasy that GWI was rah-rah good, while it was nothing more than at the behest of the Saudis
Well, now you are just slightly more interesting, but still very wrong. Iraq and Iran were bitter enemies for a long time and neither was better than the other. When the Shah was deposed the crazy Imams took over Iran, but Saddam was his own evil. There were no good guys. Their fighting exemplified the wisdom of why post WW2 Western powers carved up the ME to keep them busy fighting and killing each other while still providing oil.
GW was NOT, in my mind, rah rah good. He gave bringing Democracy to the ME a shot rather than just rolling in to destroy and then leave. I don’t think it worked.
The problem wasn’t Bush. The problem wasn’t just Saddam or Iran. The problem is Islam, and that remains a constant no matter who did what.
I’ll tell you what does absolutely no good: imaginary games of “what if”.