Why? The struggle you're having is between logic and conscience. Logic tells you that it's right to hate people who are trying to kill you. Conscience tells you that you should give people the benefit of the doubt. But the benefit of the doubt will get you killed.
I have to think that some of them are worth saving, otherwise the sacrifice that has been made by so many means nothing.
But I tell you what, a biiiig part of me would just carpet bomb the entire middle east, and call it good. People talk about "good" muslims, and "moderate" muslims, but all I have ever seen from any of them are different degrees of animosity on their part toward all things not muslim.