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.
One of the things that annoys me about lesswrong is the spectacle of rationalization in the clothing of rationality.
Where is the evidence for this claim? It's entirely possible that the opposite is true; that if the radicals are perceived to be accomplishing something without pushback, it will attract more support for their cause and more recruits.
During WWII, the United States slaughtered hundreds of thousands of Japanese and German civilians in various bombings. How much "rage" did this cause? Did it make it more difficult to de-Nazify Germany? I'm not sure but my gut feeling is that on balance, it was not counter-productive. My instinct is that creating fear and despair is more productive than avoiding anger. And that if it is perceived that Western powers are afraid of creating anger, it will only embolden the radicals and encourage them to use human shields.
Anyway, these are empirical questions and the rational thing to do is to see what worked and did not work in the past in similar situations.
There is a great deal of evidence about radicalization as a result of western actions, for example this account.
As a historian of modern European history, I can attest that archival evidence shows such slaughter did make it more difficulty to de-Nazify Germany.