So, why don't you urge the Church(es) to intervene: the life of terrorists is no longer in danger, after Israelis offered them safe passage to a third country; their goal is therere is no longer consitent with that of the clergy, which is to give sanctuary. As of now, these "gunmen" have purely political goals.
I appreciate you sympathy for the "gunmen," but they are not "bearing... arms inside the Church:" they stormed it with those guns. One bears arms inside the church when he accidentally forgets to leave the gun at the door upon entering for prayer.