That's a peculiar choice of wording.
The aftermath of 9/11 is by itself overwhelmingly sufficient evidence for the hypothesis that enraging your enemies is a terrible idea.
What do you mean by"sufficient"? If you mean enough evidence to cause any reasonable person to accept the hypothesis, I'm not sure that anysingle historical example can do that.
(I think the invasion of Iraq was a really bad idea and was "sold" to coalition countries' people on the basis of cynical lies, and I do think enraging your enemies is generally unwise, so I'm not saying this out of general ideological opposition. But I think you're way overstating your case here.)
[EDITED to fix a really bad typo: I had "engaging" where I meant "enraging" in the previous paragraph.]
Here's my op-ed that uses long-term orientation, probabilistic thinking, numeracy, consider the alternative, reaching our actual goals, avoiding intuitive emotional reactions and attention bias, and other rationality techniques to suggest more rational responses to the Paris attacks and the ISIS threat. It's published in the Sunday edition of The Plain Dealer, a major newspaper (16th in the US). This is part of my broader project, Intentional Insights, of conveying rational thinking, including about politics, to a broad audience to raise the sanity waterline.