NEW YORK — Members of the Guardian Angels were seen on cable news roughing up a man their leader described as a shoplifting “migrant” — though the allegation appears to be false. The Tuesday night confrontation played out while Fox News’ Sean Hannity was interviewing the Angels’ boss Curtis Sliwa, who directed a live camera to pan to the scuffle. “Our guys have just taken down one of the migrant guys right here on the corner — 42nd [St.] and Seventh [Ave.],” Sliwa said. “They’ve taken over.” A group of red beret-wearing Guardian Angels were then seen surrounding the man and taking him to the p…