As we mark International Holocaust Remembrance Day on January 27, Jews are facing a worldwide bombardment of antisemitism more intense and widespread than anything since the horrors we commemorate.  For those who hate Jews, Hamas carrying out the Oct. 7 attacks was not a cause for sympathy or reflection, but a call to action. In more than two years since, we have seen antisemitic protests on streets and campuses throughout the West, and murders of Jews in the United States, United Kingdom — and,