It’s hate on the Hudson. A bucolic upstate New York village has been rattled by a troglodyte throwing a Nazi salute at a weekend block party — as white supremacists steadily rub their hateful presence in Hudson Valley locals’ faces. The stomach-turning moment unfolded May 30 in the village of Fishkill, when a pasty-faced, cueball-headed bigot jumped behind two dancing girls — who are both not white — during a community event, gleefully flashed the hateful gesture and slinked away. Video