An elusive man carrying a large sign with a swastika and “Israeli Army = Nazis” on it was thrown out of the Rockefeller Center Christmas tree lighting Wednesday night, with sources telling The Post he is a serial troll known for disrupting protests across the Big Apple The mystery man — happy to display his racist views while hiding his face behind sunglasses and a balaclava — wore a huge Christian cross around his neck. He also clashed with pro-Palestine protesters who swarmed the annual tree-lighting before he was asked to leave by police. The same man can be seen...