Disagree. If that was the case, than there wouldn't be Christians in Nigeria and Sudan being terrorized by this cult of Islam.
What you're not considering is that a Muslim living in Nigeria doesn't have to go out of his way to kill the Christian living next door. Wherever they are, there will be murder and mayhem. But there aren't very many Muslims in the US, and the few that there are are controllable. If the Muslims in Nigeria don't have a reason to go out of their way to kill us, they will instead focus on their own neighbors. Of course, that's not a great success story, but nevertheless true.