Columbia University faced a wave of fury over antisemitism on campus from billionaire donors Monday — with one calling pro-Palestinian mobs on the campus “f—ing crazy.” New England Patriots owner Robert Kraft, a Columbia graduate, said he was stopping donations immediately and charged the college with failing to keep its Jewish students safe. Billionaire investor Leon Cooperman, a business school graduate, said he would stick with a stop on donations which began shortly after the October 7 Hamas massacres.Sources told The Post that other billionaires, including industrialist Len Blavatnik may also consider pulling back as the campus is rocked by...