So far of what I know of Islam, it is true that they haven't put up much of a fight against terrorists. Also, just because they don't go into major protests doesn't mean that they are not against people like Osama. It's a bit hard for them I suppose. I have a muslim friend, and he says that he is disgusted of muslim people who celebrate when people like Osama have blown up some place. For him its hard to start up a protest because it is promoting a form of hatred against someone, and according to him, in the religion of Islam, violence and hatred is prohibited
As you have said, Islam is a peaceful religion
