Sadly, this is exactly what the madmen in Iran are trying to do - get rid of all non-Muslims in Iran.
I don't know the history of Christians in Iran, but other minorities, like Jews and Zoroastrians, have been there much longer than the Muslims have. If anything, they have more right to be there than Muslims do.
When Cyrus the Great ruled Persia, it was one of the greatest civilizations on Earth. A Zoroastrian (original religion of Persia), he presided over a golden age, and even went out of his way to protect the Jews in his land, as well as helping the Jews regain their place in Judea.
The Islamic invaders ruthlessly raped Persia, and to this day they are trying to destroy its history and people.
Leaving is not an option - that would be capitulation, and surrender.
We should help the original Persians, the Zoroastrians, regain their birthright and their home. If the Muslims want to stay, they should be welcome, but only as one among many, not as the modern Nazis they have become.
I see your point...but would rather these people live than die.
I don't think the Muslims have yet recovered from the annihilation that the Mongol Horde laid upon them.