I used a word stronger than persecution because this is stronger than persecution. Persecution is nobody hiring you, getting roughed up by bullies and/or the police, etc. This is genocide and I can promise everyone that Iraqi al-Qaeda is fantasizing about doing this to five and a half million Jews in Israel and having a real second Shoah (uppercase S).
As for the Iraqi Christians leaving for safer countries, that may be the only option but Iraq is their country fair and square; they were there long before Iraq was Islamicized. They are ancient Chaldeans and aren't even Arabs. The United States could protect them in a heartbeat by dropping a couple hundred napalm bombs on surrounding Iraqi Muslim villages but in Jorge Wahhabi Bush, we had a president who willfully did nothing so as not to offend his sand-bros, and in Barack Hitler Osama, we have a president who is actively helping al-Qaeda as much as he can.