They were always controlled by their Muslim bosses. And influenced by them.
There are some heroes though, such as Joseph Haddad...
Sirhan Sirhan was and still is a Christian Palestinian. Same grievances that we usually ascribe to the Muslim Palis. One of my friends worked with him in the stables of one the racetracks out here. He said Sirhan was on the quiet side and he never heard him talk politics.
They had sanctuary there and funding from oil kingdoms and Soviet bloc
And left wing western nations and insurgent groups like IRA