@LouisIngenthron at a popular level, sure I agree we need to address the demand, though I think "education" is nearly always a nonanswer, a stand-in for an answer, rather than an answer.
but the supply by public officials in power and authority I think might have an important role in catalyzing popular impulses towards self-righteous violence, and the behavior of public officials is among the most clearly legitimate objects of public regulation. 1/