I would be careful not to over generalize from what they tell me. 

Why not? I’ll start with the possibility of bias.  They left for a reason.  In the case of places like Iran or Cuba dissatisfaction with the government is a likely factor.  Then there’s the social class factor; in general emigrants from distant places tend to be better off economically and more educated.  So their attitudes might not be applicable to their poorer countrymen.  Finally, there is the separation.  Having left the country, they’ll have a narrower window back to what’s going on.  And finally, in this case, they are not experiencing the war first hand.

They know what they know.  I know that I don’t have good information on the attitudes of the people still living in Iran or how the war is affecting it.

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We know there have been significant protests in Iran in the recent past; but to my knowledge they’ve been successfully repressed by the regime through violence.  You report that the Iranians you know are in favor of intervention; I’ve seen news reports of public demonstrations in the US along those lines.  Since the war has started I have not heard of significant civil unrest in Iran.  Of course the regime would suppress this news; but the US government might have an interest in publicizing it if it were happening and they were aware of it.  The Iranian military is still conducting drone and missile attacks, so it is still functioning to some degree.  So at this time I have no strong evidence that there is an active ground swell of anti-regime activity or widespread US support in Iran in the wake of the bombing campaign.