True Christians wouldn’t convert. Now if they’d let Christians come in, join IDF and fight for Israel as Christians, I’d be all over that. I’d see it as an honor. But deny my Lord? Oi Vey!
Your comment actually got me curious. A significant number of Christians already serve in the IDF, but they are all Israeli citizens or permanent residents. Largely, its Russians who immigrated under the Law of Return because they had a Jewish grandparent or a Jewish spouse. But smaller numbers of Armenians and Israeli Arab Christians also serve.