New York City socialists are mustering an army of more than 4,000 anti-ICE activists to form “rapid response” battalions and obstruct the feds in an expected imminent crackdown on illegal migrants in the Big Apple. Mayor Mamdani’s comrades with the DSA outlined the mission Thursday at a monthly meeting of their Immigrant Justice Working Group in the swanky Midtown digs of the Chinese Communist Party-linked People’s Forum, where photos of communist idols Fidel Castro and Che Guevara decorate the walls. “As we’ve seen in other cities, we still do anticipate a big wave of federal immigration enforcement,” a DSA leader...