Actually at the time of Jesus all Jews were living in Israel,mit wasn’t called Palestine. Over 200 years after Jesus was crucified, the Romans sacked Jerusalem and called the land Philistine, which was an enemy of European ancestry that Jews had defeated. They did this to piss the Jews off. Philistines have nothing to do with today’s Arab Muslims.
Nope. It's was arid and stony particularly around Israel. They were far more prosperous around Galilee, Capernaum and the Decapolis. Jesus was safe in the north. The sandedrin in Jerusalem wanted Jesus dead.
The Philistines date to the old testament. Remember Samson?
Philistine has nothing to do with the word Palestine. Palestine was a province of Syria since 500 BC.