You may have gotten that impression. But as I recall, Bush was pretty clear it would take some time to stabilize Iraq.
"all Iraqis would immediately turn against thousands of years of cultural heritage and embrace democracy - which did not happen."
True, hasn't happened yet. Well, some have embraced it. The folks coming in from Iran, however, are sent there to stir up anti-democracy sentiment among the nutcases. As Bush indicated from the beginning, it will take time to stabilize Iraq.