Some American universities have become hotbeds of anti-semitism. Demonstrations aren’t just against Israeli policy but Jews as a group. And the demonstrations’ aggressive nature is increasing. Columbia University in New York City and Yale University in New Haven have been pitchforked into the headlines. Columbia is in the news due to its extended pro-Palestinian demonstrations characterized by one of the demonstrators as a university “take-over.”It’s so intense that the University’s main rabbi has urged Jewish students to leave the campus. At Yale University, a demonstrator reportedly stabbed …