So I suppose we should shun them as well.
First, I don't remember where the Jews killed the Hittites, especially since the Hittites were the conquerers of the ME and Egypt. But aside of that, any wars the Jews fought were specific and to one group. Islam has 2 houses: der el Islam and der el Harb (House of War), guess where all the none Muslims are? Oh but I have a feeling you already know that.