Because he did give them the land and our Lord is not a sky pixie. Why do you feel compelled to insult? Have you been insulted for being an atheist and feel the need to get even? You radical atheists need to get a life and start appreciating diversity you liberals expect and offer it toward those who do you no harm.
Really? Do we have film of the Sky Pixie giving the land to European Jews? Where's the proof of the Sky Pixie's existence, much less that he gave that strip of land to a bunch of people from Europe who happen to follow one branch of the Abrahamic Religion. (Christianity and Islam are also Abrahamic Religions, therefore, they could make just as good a claim to the "Holy Land" as the Jews.)
And before you say "the Bible", the fact is, you Christians have used the Bible as an excuse to oppress the shit out of the Jews for 2000 years, which is why they all wanted to go to Palestine to start with. So it seems to me that using the bible as proof of anything is a little silly.
Yes, I do feel the need to insult someone who claims that the will of an imaginary pixie in the sky gives him the right to get us into wars, tell us who we can have sex with, and otherwise allow the rich to fuck us because they've learned how to manipulate your level of stupid.