A good example: We toppled a secular government in Iraq (Saddan's)that allowed Christians to worship, and in its place an Islamic Shia government has been established. Christians are being harassed and persecuted, and have left the country in great numbers.
We should continue to support genocidal tyrants because their divide-and-conquer methods result in greater freedom for Christian minorities?
There are unintended consequences for any possible action, especially in the Middle East where everything is so conspiratorial and intertwined. Focusing on these UC will result in an inability to take any action.
It is probable that the greatest calamity for Arab Christians was the original Israeli invasion of Lebanon, which resulted in Arab Christians being credibly portrayed as allies of the Jews against Arab Muslims. Does this mean the Israelis had no right to invade Lebanon if necessary to protect themselves?