https://en.wikipedia.org/wiki/Persecution_of_Christians_by_ISIL
Iran and Iraq are not friendly countries. They persecute Christians which goes unreported by the media you watch.
I think that the above and this post will refute that Iran persecutes Christians.
In October 2010, an Iranian official delivered a letter from President
Ahmadinejad to
Pope Benedict XVI in which the President said he hoped to work closely with the
Holy See to help stem religious intolerance, the breakup of families and the increase of secularism and materialism. A return letter from Pope Benedict was hand-delivered by
Jean-Louis Cardinal Tauran, President of the
Pontifical Council for Interreligious Dialogue, according to Passionist Father Reverend
Ciro Benedettini, Vice-Director of the
Vatican Press Office in a statement issued November 10, 2010. The Papal letter's contents were not disclosed. Cardinal Tauran met with the Iranian leader while Tauran was participating in a three-day meeting on
Islamic–Christian relations, along with Iranian Catholic leaders. The meeting was a joint initiative of the
Pontifical Council for Interreligious Dialogue and the
Teheran-based
Islamic Culture and Relations Organization.
Early relations began during the reign of Shah Abbas I when the Persian embassies visited the pope. The two countries have had formal diplomatic relations since 1954, since the pontificate of
Pius XII, and have been maintained during Islamic revolution.
[2] Iran has a large diplomatic corps at the Vatican with only the
Dominican Republic having more diplomats accredited to the Holy See.
[2]In 1979 Pope John Paul II sent envoy to Iran to help to solve the Hostage Crisis. In 2008 relations between Iran and the Holy See were "warming", and
Mahmoud Ahmadinejad "said the Vatican was a positive force for justice and peace" when he met with the
Papal nuncio to Iran, Archbishop
Jean-Paul Gobel.
[3]According to an online news story article by
Carol Glatz of
Catholic News Service posted on the CNS website on Thursday, October 7, 2010, President Ahmadinejad "told
Pope Benedict XVI that he would like to work more closely with the Vatican in an effort to stop
religious intolerance and the breakup of families. The president also appealed to world religions to cooperate in the fight against secularism and materialism, Iranian news agencies reported. The appeals came in a letter that was handed to the pope by Iranian Vice President for Parliamentary Affairs
Sayyed Mohammad-Reza Mir-Tajeddini, during a brief meeting Oct. 6 at the Vatican. Vatican spokesman Jesuit Father
Federico Lombardi confirmed to
Catholic News Service Oct. 7 that the letter was given to the pope and its contents already published by Iranian media outlets. According to reports, the letter praised the pope and the Vatican for criticizing a U.S. pastor's threats to burn copies of the
Qur'an on September 11". On November 3, the Pope sent the Iranian President a letter in reply, in which he stated that the establishment of a bilateral Vatican-Iranian commission would be a desirable step towards solving the problems of the
Catholic Church in Iran.
[4]