Following are the insighful words of Michael Scheuer, posted here as a summary and a highlight! Scheuer words do answer the question: Why do they hate us and are fighting us to death?
And the answer is: “It is the unjust invasion and occupation of Muslim lands, stupid!”
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I’m not sure we have a precise metric yet. But the impression to me, at least, is that we’re in far worse shape now than we were in 2001, primarily because we’ve kind of, perhaps unknowingly, provided the Quranic predicate for a jihad: the unprovoked invasion of a Muslim country by an infidel. And so, as night follows day, no one should be surprised that the level of fighting has increased.

The other half of Mr. Rumsfeld’s ponderings should be: do we understand what the motivation is for them to do this? And clearly, we come back to the point that what we do, and not how we live or what we think, is what the motivation is.

And so not only are we losing those two wars, but we have yet to take the measure of the enemy’s motivation.