Good analysis, although I have several points:
Iran is not from the West, much less from the Western Hemisphere.
I do not agree with simplimente victimizing a country and pretend that they have been in one way or another innocent, while they hurt them, because that is a lie, and especially in countries like Iran.
But of course you're right about American interference in the Middle East, even Trump did not support them until he reached power, he criticized the invasion of Iraq and interference in Libya. But the reality is that little we can know about why it is a "threat" Iran. Since the interests and objectives behind these interventions are not public knowledge, but rather are within the highest spheres of government.