That area was known as Palestine when Jesus walked the earth, dumbass.
Timeline of the name "Palestine" - Wikipedia, the free encyclopedia
In 130 A.D., about a century after the crucifixion of Jesus, there was a Jewish rebellion against Roman imperialism. Successful it was not. Simon Sebag Montefiore, in his masterful tome Jerusalem: The Biography writes that hundreds of thousands of Jews were killed in battles with Roman forces and “so many Jews were enslaved that at the Hebron slave market they fetched less than a horse.” The Roman emperor, Hadrian, was not satisfied. He determined to wipe “Judaea off the map, deliberately renaming it Palaestina, after the Jews’ ancient enemies, the Philistines.” And who were the Philistines? They were “Sea People, who originated in the Aegean” and sailed to the eastern Mediterranean, where they “conquered the coast of Canaan.” In other words, Jesus was born a century before the region was renamed Palestine. That makes calling him a Palestinian akin to calling a 15th-century Algonquin a New Englander. And Jesus was certainly no Philistine. Based on all the evidence, he was a Jew born into an already ancient Jewish community.
Read more at:
Jesus of Palestine? | National Review Online