Ahmadinejad's response has been to criticize the US president.
The protests have increased.
Ahmadinejad's support has decreased.
You appear to find Bush's policy had an effect of weakening Iranians' support for Ahmadinejad, increasing protests against him and the clerical regime, or both. I doubt it.
No in my last post as one can see above in bold, I took the approach to simply lay out the facts and let one come to their own conclusion.
More likely the reasons are simply thuggery, authoritarianism, theocracy too harsh even for many Muslims, and obvious election fraud with a bad economy in the background.
...and at the very least a U.S. president supporting the Iranian people and their rejection of the tyrant Ahmadinejad can't hurt and may help.
Do you still think that a U.S. President who vocally supports the Iranian people and their defense of their unalienable rights, will cause the Iranian people to then reject that U.S. President, reject their unalienable rights and switch their support back over to the tyrant Ahmadinejad?
I don't.
However, your approach does have the virtue of looking at things empirically.
No, human nature and experience lead me to my point-of-view. Your approach appears at least from your posts to be derived from nothing specifically stated.