NEW YORK — On Saturday, several hundred demonstrators gathered in Times Square, beneath its giant illuminated American flag, to denounce the US and Israeli strikes against Iran. “We understand this war and this attack for what it is — an extension of this genocide and an aid to advance imperialist Zionist interests,” a speaker told the crowd, to shouts of “Shame” from the audience. A day later, hundreds of others gathered in the same square to celebrate the campaign, chanting “Iran” to the beat of a drum. “As an American, I want to say that this is what America’s all...