That is an illogical and counter factual statement. The tenor of a religion is determined entirely by the attitudes and behavior of it's adherents, and that by how they interpret the dictates of their religion. The history -- and for the matter of that even a "slice of time" sociological study -- of the major religions indicates they are all liable to wide ranges of evolution and interpretive gloss, whatever their sacred texts may say.
A religion is, almost entirely and exclusively, what its adherents make it. If there are moderate Muslims then there is, ipso facto, moderate Islam.
Of course I understand what Warriq means: That the radical, violent, terrorist, jihadist interpretation of Islam is the CORRECT and ONLY CORRECT interpretation of Islam. This is a stupid message to preach, because it validates the ideology of our enemies. It's also ironic that it's gleefully by some Christians here since it's EXACTLY the same tactic that activist anti-Christian atheists take: Claiming that the most extreme and nonsensical interpretation of Christianity is the only valid one.
Only if you think the truth is stupid.
L