Earlier quoted context omitted.
The two nations had good relations until 1979, which is a problem for this person's world view.
I have no dog in a fight, in which you seem to really care about Iran, which is totally irrelevant, meaningless, and inconsequential to the USA or its national interests or national security; but the war machine relies on fools to fun smoothly. You do realize though that you are morally and ethically and spiritually culpable and responsible for the murder of the people that will die due to the support you provide to…
If we stick to this colonial term we will never find an end. Arabs colonized the whole Middle East and subjugated all natives: Jews, Kurds, ezidis, Assyrians, etc. Moreover, Iran itself was colonized and Arabized by force. So, I would say any anti-Muslim anti-Arab movement in Iran is anticolonial by nature.
Where does it lead us? Nowhere. This is why this whole “colonial” vs. native etc is pointless — there was always some group of people living on a piece of land before some other group came.
Edit:
Also, I find it pretty hilarious that Shah was a colonial regime but Islamic Republic is not: France literally harbored Khomeini and the moment Shah fell they flew him back to lead the revolution. But since IRs rhetoric is anti west and anti Israel, the modern left completely forgives all the atrocities committed by IR: abuse of women, violent suppression of dissent, execution of rappers for a song, etc.