Um, so what would cause "right-wing, pro-settler extremists" to think this type of behavior is a valuable strike for their cause? This just doesn't make sense to me.
I don't know who did it, but I will answer your question: most chrstians, especially the "indigenous" chrstians of the Middle East, are very anti-Israel and pro-PLO. Most of the chrstians of the world are not like Hal Lindsay. Unfortunately, American-style Fundamentalist Protestants don't seem to understand this. The ancient mutual antipathy between Jews and chrstians continues unabated in the Middle East.
American-style Fundamentalist Protestant chrstianity is an anomaly in chrstianity. It has no roots in the ancient chrstian past. If you want to take a look at real chrstianity visit the web sites and watch some of the liturgies of the ancient churches: the Syrians, Maronites, Melkites, Copts, Assyrians, Chaldaeans, Ethiopians, Armenians, and Malankara of India. All these ancient churches trace their history to the apostles and there isn't a pro-Israel American-style Fundamentalist Protestant in the bunch. Not one. And they predate Constantine, so you can't blame their attitudes on him.
Every single ancient church has a web presence. I'm watching a Syrian Orthodox liturgy right this minute on YouTube (though I know I shouldn't really be doing it). You can find them too.
Do you recall the statement put out by the Middle Eastern churches a few years ago stating that "Zionist chrstianity isn't chrstianity at all?"