Israel’s prime minister, Benjamin Netanyahu, in Jerusalem last week. On Wednesday, he portrayed antiwar, pro-Palestinian protesters on U.S. college campuses as antisemites. Prime Minister Benjamin Netanyahu of Israel said on Wednesday that protests at U.S. universities against Israel’s war in Gaza were “horrific” and should be stopped, using his first public comments on the subject to castigate the student demonstrators and portray them as antisemitic. Mr. Netanyahu’s comments could harden division over the demonstrations. They could also give ammunition to Republican leaders who have criticized the protesters and accused university administrators and Democrats of failing to protect Jewish students from...