I didn't read it as a "jab". I think it's important because people on the left often justify doing extreme things for "good" reasons, while people on the right

I didn't read it as a "jab". I think it's important because people on the left often justify doing extreme things for "good" reasons, while people on the right justify doing extreme things for "moral" reasons. In other words, both sides also attract mature - indeed, philosophically diverse and well-marinated - people who are willing to say that the ends justify the means precisely because they understand one version of history and have drawn drastic conclusions from it. People who have thoroughly thought-out belief systems and historical examples to back up their contentions - and who have even considered or flipped from opposing points of view - are much more dangerous as spreaders of radicalism than any immature true believer.