I do not believe that Islam is inherently threatening to us. I know this from my observation of some Muslims I know -(the only two I actually know well, to be honest). They are kind people who practice their religion faithfully. They appreciate America and honor George Bush, who they say will "do the right thing even if he is criticized for it." Frankly, I wish more Americans who were born here had these immigrants' understanding of what America is (or should be) all about. It's but a small example, but it is sufficient to prove the truism --Muslims can be sane and rational.
Now with respect to the hordes of America haters throughout the Muslim world, I think they are brainwashed and indoctrinated by zealots and opportunists. It is probably a waste of time to try and reason with them. We will deal with their rulers on the basis of commerce, oil, and money. The rulers will hold them in check and the people will eventually come to see America for what it is-- a bastion of freedom and democracy that will blow the living hell out of them if they want to start some sh*t.