A good chunk of the Iranian diaspora are the old supporters of the monarchy. Under the Shah Iran and Israel were allies. Also a lot of Iranians are strongly racist against Arabs. The fact that a lot of Arabs killed family members, when Iraq invaded them in 1980 and an eight year long bloody war followed, certainly does not help.

Not saying Israels genocide is a good thing, but the Iranian diaspora is probably a bad gauge to judge Iran by.

basically if someone flees a revolution and goes to live in a western country, they're the worst scum in the world. they seethe with hatred for their former countrymen and they want nothing more than to be placed in power by a US invasion, to put their boots back on the necks of the peasants once again. Not only should you not listen to them, you should be actively hostile to them. If the war causes a global famine (via fertilizer shortages) and it comes to it, you should eat them.