Read the article again, it was cited. Here it is.
"They said they heard the Quigleys discuss a campaign to drive them from the upscale Evergreen neighborhood with Nazi scare tactics, including tossing lampshades and soap on their lawn and putting pictures of Holocaust ovens on their house."
That kind of talk is anti-Semitic, whether said in jest or in all seriousness. The Quigley's were clearly not defamed by being labeled anti-Semitic.
--Boot Hill