War does radicalize, so it is useful to keep in mind that even the most obscene slurs and outrages - including painting synagogues with antisemitic graffiti, or Israel’s supporters telling anti-Zionist Jews that Hitler should have gassed them - are byproducts of the main thing: killing and kidnapping; siege; occupation; dispossession; the bombing of hospitals, bakeries, and refugee camps; the denial of water and electricity to civilians; and the massacre and maiming of children.