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.
There was a lot less general slaughter after WWI, so it should have caused Germany to be demilitarized a lot better then after WWII, oh wait.
There was a lot less general slaughter after WWI, so it should have caused Germany to be demilitarized a lot better then after WWII, oh wait.
What's interesting to me is that as an American, if you visit Japan, there does not seem to be a lot of Tsipursky Rage in evidence. Even though we bombed the hell out of them and nuked two of their cities. And you don't see many Japanese people plotting to launch terrorist attacks in the United States. Of course Japanese culture is probably different from that of the Arabic-speaking peoples in the Middle East. But anger at perceived injustice is a pretty universal human emotion (based on my general observations).
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.