Fred, I went out of my way in prefacing that to say I'm not saying all christians say that about Muslims. What I did say was that a group which contains, and in some ways panders, to christians has been saying it for years without being called to task for it.

As for terrorism, you're right, but I also included the "extremism" element in there. Not all extremism is violent extremism (ie terrorism), but can be things like calling for the death of non-believers, etc, which elements of exist in all religions, in all parts of the world, for as long as religion has existed as a thing. Also, there has been Christian terrorism in the US and there weren't calls like what I laid out, so the point does stand really.

So let me clarify and pose the question more clearly: Why is it okay for people who call themselves Christians to say another religious group is responsible for fixing that groups vocal fringes, but it is unacceptable for it to be said to Christians about their own vocal fringes?