[dfwgator]

Wiki agrees his father is palestinian but states that both parents are Christian.

Taqqiya.

[Jacob Kell]

A lot of Mid East Christians tend to be Left Wing/pan-Arabists on issues over there. This means they’ll side with their “fellow” Arabs and take positions that are opposed to US interests. Not all, or necessarily even the majority, but some. Off the top of my head, this is a list of a few (non-US citizen) anti-American Arab Christians,
https://en.wikipedia.org/wiki/George_Habash
https://en.wikipedia.org/wiki/Sirhan_Sirhan
https://en.wikipedia.org/wiki/Michel_Aflaq