Very few if any danced after Baruch Goldstein's murderous act. It was roundly condemned. What factual proof do you have, if any, of people dancing after this sensless massacre? On the other hand Palestinians frequently dance and celebrate the slaughter of innocents including dancing on 9/11 and the mother of the butcher of the Fogel family praising her son's slaughter of an infant. There is documentation of the Arabs in the Galil celebrating rocket attacks by Hizbullah. By the way there are no Palestinian citizens in Israel but there are many Arab citizens. Before 1948 the term Palestinian was used by the British to describe the Jews and has been coopted by the arabs.
Magnitude 4.2 quake strikes near Grand Coulee Dam in Washington (Reuters)
from the article: Israeli Arabs are citizens, not enemies of the state