An ethnic group is defined by language and common cultural traits. What is the national costume of the Jewish people? Black hats and black coats, big square fur hats, covered heads or wigs over shaven heads for women? What is the folk music? Klezmer? Ladino? "Rumania, Rumania?" How about the common food--borshch, blintzes, knishes, kosher herring (YUMMM!), bagels, lox, kosher dill pickles (YUMMM!)? Once these traits that all Jews have in common are established, then, yes, Virginia, there is a Jewish people.
Two mortar shells explode in Golan Heights, no casualties or damage reported (Haaretz)