That land has been Arab for over 1300 years. Just because Jews once lived there doesn't mean it's Jewish for all eternity. The Exodus is a myth. Most Jews remained in Judea, Samaria and the Galilee after the Roman Wars. They just converted to Christianity and Islam later, just like most people living in the Middle East then. Palestinians are more likely descendants of the ancient Israelites than the Europeans that arrived after 1880.
First refugees travelling on Hungarian bus arrive at Austrian border (Reuters)
from the article: Palestinians plan UN resolution calling for settlement evacuation