hmmm... lol what? of course we do!!
Only practicing shia muslims share your view.
Go to an Iranian college and make friends with a couple of Iranians till they feel comfortable around you. You will meet Iranians for the first time then
btw, shia Islam is to Azari Iranians as zoroastrianism is to Parsi/Persian Iranians. Of course you'll see many practicing shia parsis, but it's only azaris that are hard core muslims. They tie part of their identity to the religion, just like Turks and Pakistanis. Persian Iranians on the other hand see Islam as an Arab import. Although Azaris are only 13 percent of Iran, a good chunk of current Ayatollahs in Iran are Azaris, including khamenei. I've never done a head count, but their names are listed on wiki.
Also, read this thread (you'll see my contribution there as well lol):
SkyscraperCity
Iranians will never revert wholesale, but a good chunk of Iran has never accepted Islam. They didn't accept it 1400 years ago, and we're not accepting it now (minority of ppl of course). The problem is that for 1400 years Islam has been shoved down our throats, and it still is. During the Safavid dynasty and Qajar dynasty when shia Islam was being forced on Iranians, hundreds of thousands of Zoroastrians were either killed or forced to convert. Today, those of us that are purely statistical muslims don't even dare bring up the idea of conversion as it's a punishable crime under this regime!! Statistical muslim Iranians have been waiting for democracy for 1400 years. Only then we can show the world our true selves. Even if a million Iranians convert to zoroastrianism in the next 4 decades, that would be enough to start something big, but even if it doesn't, there are a lot of us who wouldn't mind converting from a religion that we have zero interest and belief in.
Edit: here's a chart of Iranian-Americans' beliefs. Remember that the majority of Iranian-Americans left during the Islamic Republic era and are part of the IR educated mass. If you do a chart in Canada, it would be the same. This is what happens when Iranians are given a choice.