Nick Cave, the dark poet of rock, on Sunday accused the anti-Israel boycott movement of trying to bully musicians and said he was taking a “principled stand” by performing in the country. The Australian artist, known for music that can be both melancholic and uplifting, is popular in Israel and is set to perform a pair of nearly sold-out shows. At a news conference, Cave spoke about the pressure on artists by the international movement that seeks to ostracize Israel by lobbying corporations, performers and academic institutions to sever ties with the Jewish state. He said record producer Brian Eno...