Far too easy for a terrorist to fake being a Christian. Even if they are Christians, this doesn’t mean they are compatible with our culture. There have been numerous cases of supposedly Christian Somalis, for example, who have been brought to this country and who have raped women and children.
I live in a county that has a very small Syrian Christian community. Anti-Jew up the wazoo! I know Trump is doing the right thing here as long as he does extreme vetting. Middle-Eastern Christians have drunk the islam Jew hatred for many centuries.