Imam Khomeini, the late founder of the Islamic Republic regarded everybody in Iran as a noble human being regardless of their religions.
He only asked from all religions to obey their holy books and resort to spirituality and divine values a much as they can.
All those minorities Saint leaders such as priests & rabbis are very happy in Iran as they are free to practice all their sects easily and thanks the government and also inform other countries about their conditions and situations.
Imam Khomeini wanted to unite followers of all divine religions under banner of monotheism in order to confront the unjust and brutal policies of colonial powers towards oppressed nations. He was a great supporter of the oppressed people and nations in contemporary history.
The Christians, Jews, Zoroastrians and followers of all divine religions co-exist and live peacefully across Iran.