Though the Christians in the PA avoid saying so publicly, many of them fear with good reason that Muslim aggression against them will only escalate, wrote Edy Cohen, a researcher at the center. Such fears are all the stronger in light of the thunderous silence of the Western [and Israeli] media, in the face of the Christian minoritys ongoing disappearance from the PA and Islamic lands in general."
https://m.jpost.com/opinion/the-christian-crisis-612032
The Real Reason Palestinian Christians Are Leaving Bethlehem
It is no coincidence that Bethlehem was mostly Christian until the 1990s. Until then, Bethlehem was ruled directly by Israel through a military administration. Although they were not full citizens of Israel, Palestinian Christians (and Muslims) could travel freely inside the country, visit the beach, and shop in Jewish neighborhoods. That all changed in the mid-1990s when Israel agreed to let the PLO rule parts of the West Bank and Gaza under . . . the Oslo Accords. . . .
The Palestinian Authority (PA) . . . is, by its own constitution, an Islamic state [based on] the principles of sharia law. Christians living under the PA are accorded sanctity and respect, but . . . are relegated to the status of second-class citizens. . . . Discrimination against Christians under the Palestinian Authority isnt just legalits also social. Living as a Christian, one is constantly reminded that he or she is not a member of the majority culture. . . .
Ive spoken to numerous Palestinian Christians who describe how Muslim terrorists would commandeer Christian homes and use them to direct sniper fire at Israeli soldiers. Others speak of systematic discrimination in hiring, housing, and education. Of course, all of these conversations take place in private meetings and hushed tones. Christians in Bethlehem rarely interact with Muslims beyond the marketplace and are, in fact, very much afraid.
https://mosaicmagazine.com/picks/israel-zionism/2016/03/the-real-reason-palestinian-christians-are-leaving-bethlehem/