1. The fact that a few traitors of their own people are included in the IDF, does not change anything, they are under Israeli Jew leadership. A few, very few, Irish Catholics served in the British Army during the troubles in Northern Ireland and killed fellow Catholics. The statement is not biased at all, nor is it selective. It is just fact. Stating fact does not imply "hate" in any way. There were no IDF Christians involved in the attack on Gaza, by the way. It would be like saying that the Nazis were not the killers of the Jews because Jewish Kapos collaborated with the Nazis.
2. This is the Israel-Palestine section of this forum. I am contrary to my tax proceeds being given to any country that kills civilians. By the way, our president is a Christian.
It's not really right for you to characterize Arab Christians, Druze or Bahais serving in the IDF as traitors. That would be like me calling you a traitor to Christians, because you don't seem to care about the Christian holocaust taking place now in ISIS-controlled areas. All of these minority groups, in Israel proper, have their own complex and legitimate reasons for supporting their host country. Druze (an offshoot and different religion from Islam) are famously loyal to whichever their host country is. The Bahais have their holy city in Haifa, and they're grateful to Israel for keeping their holy sites in pristine condition, where they can worship freely, unlike Iran, where they are persecuted. Arab Christians in Israel might have heard of the case of Palestinian John Calvin, who converted from Islam to Christianity, and is seeking political asylum in Canada. He is afraid of being deported back to the West Bank, where he would face execution. They might want to contribute to the state they're living and working in, and don't daydream all day about the long-gone Latin Kingdom of Jerusalem, like you do. Each individual case must be judged on its own merits.