In a just world, there would be no need for Tuesday’s “March for Israel” in Washington. Yet the past month has made clear many in the Western world are flirting with injustice and, worse, outright supporting evil. We need to remind ourselves of what we as a civilization stand for — and, just as important, what we stand against. The March for Israel will be in stark contrast with the countless protests that have swept college campuses and major American and European cities. In those protests, supposedly educated people and elite voices have tried to justify Hamas’ barbaric Oct. 7...