The Klan uses a cross for its symbol, too.
Yet I see no one pointing to them as an example of Christian behavior.
You have asked on other occasions: why aren't the majority of Muslims speaking up in opposition to these organizations? Probably because they don't belong to them. The fact that there are not millions of Muslims all over the world taking up arms and blunt instruments to kill foreign tourists and businesspeople en masse ought to speak for itself.
I don't feel the need to speak up every time some white extremist nut says something stupid and hateful just because I'm white.
Please stop villifying an entire religion based on the activities of people who claim to be speaking for it. You're starting to sound like a Crusader trying to justify the subjugation of the heathen.