Maybe it is the gruesome suddenness of his death that has made so many people forget the realities of Charlie Kirk’s life. After the 31-year-old rightwing influencer was shot dead at a college campus appearance in Utah on Wednesday, many commentators rushed to condemn political violence, on the one hand, and to issue warm tributes to Kirk’s life, on the other. The former of these is legitimate: that political policy should not be determined by force, or political disagreements settled through...