The Armenian Catholicos of "the Great House of Cilicia" once gave a speech saying that "palestinian martyrs" were considered martyrs of his own church. Arafat also said "the palestinians and the Armenians are one people" and was the godfather to the Communist terrorist Armenian Secret Army for the Liberation of Armenia.
Also "palestinian" chrstians are even more anti-Israel and pro-PLO than the moslems. Israeli christians used to vote for the Israeli Communist Party as regularly as our Blacks vote for the Democrats and the Communist Popular Front for the Liberation of Palestine was founded by a Greek Orthodox Arab.
Every Orthodox Christian is aware how easy it is to excommunicate oneself. The most usual case is for lack of attendance at Divine Liturgy, which is usually easily corrected. However, murder, adultery, and/or apostasy are a lot harder to reverse!!!! No one who has excommunicated oneself for these serious sins should be called an "Orthodox Christian", whatever their background!!!
Moreover, Hamas and Hezbollah were founded by and are populated by muslims. So it it wrong to say that "Palestinian" Christians are more anti-israel than "Palestinian" muslims.