Any “Christian” that is anti Israel is no Christian at all. Matters not if they are Arabs or not.
I agree that Christians should be pro-Israel. I will allow this for the Arab Christians. They have been raised amid tremendous anti-Israel propaganda their entire lives. They have a lot of baggage to outgrow.
That said, this conference was in the USA and not in the Syria or Iraq. They were in no danger. They should have politely allowed Cruz to deliver his speech.