The sad thing is they actually believe this.

Via MEMRI:

“[However,] the Jewish crimes which came to light throughout history and which were investigated and tried are a drop in the ocean compared to the Jewish crimes that no one knows about. The thousands of children and others who vanish around the world are probably victims of Jewish rituals. Their blood surely lies in Jewish stomachs along with the holiday matzas.

“The Jews have tried denying that they drain the blood of non-Jews and use it in their holiday matzas, and they continue to deny it. Rabbi Moussa Abu ‘Afia [one of the Jews implicated in the 1840 Damascus blood libel] converted to Islam during the investigation into the [murder] of Father Toma in order to escape punishment. He gave important testimony regarding the Talmud and the directions it contains that hint at crimes and barbarity.

“As part of the efforts to deny [the Jewish crimes], Jewish Americans wrote stories about vampires in the 1970s, in order to disassociate themselves from the accusation of sucking human blood and deceive [the mechanisms of] justice. During that period they spent millions on Dracula films, in order to deceive world public opinion. They claimed that those who slaughter children and adults and suck their blood are lunatics and that all this has nothing to do with them and their religious rituals. On February 14, 1964, the [Egyptian] magazine Al-Musawwar published a story about vampires in Colombia after many [Colombian] children had been slaughtered to shed their blood. Neither the magazine nor the investigators in Colombia dreamed that the vampires might be Jews, rather than [people who] sell blood to hospitals.”