The IDF, historically a social cauldron, is segmenting into the more religious and right-wing fighters, who generally believe in Jewish purity and Zionism, and the traditionally more secular, left-leaning forces, who value all human life over land disputes. Obviously this is dramatically oversimplifying, but I have interacted with those who see all non-Jews as inferior, and it is an ugly and very real way of life. Letting those sorts of values permeate the IDF is dangerous and counter-productive to the long-term survival of Israel.