Same Old Jew, the Israeli Water Engineer, still learning and blogging.
https://en.m.wikipedia.org/wiki/Red_Jews“The Red Jews were a legendary Jewish nation that appear in vernacular sources in Germany during the medieval era, from the 5th to the 15th century. According to these texts, the Red Jews were an epochal threat to Christendom, and would invade Europe during the tribulations leading to the end of the world.”
"Are there any red jews?"The other answers, "I don't think so."They argue for a while and then enter a restaurant which turns out to be Chinese.The waiter comes up to them and asks, "What would you like?"They decide to ask him their question.Are there any red jews?He answers: "No red jews. But we have orange juice, apple juice, tomato juice..."