It’s complete and utter bullshit. If God meant them to have the land that is “Israel” then he seems to have reneged on that promise more than once. The first time was the Babylonian Captivity, when the ruler of Babylon enslaved and removed almost all of the Jews to Babylon - the so called Babylonian Exile. The second time God reneged on his promise that Israel was for the Jews was in 70 CE under the Roman Emperor Titus when the Roman Province of Palestine was emptied of the Jews and they had to spread throughout the empire because of their revolt against Roman Rule. For centuries very few Jews lived in the area of what had once been the Promised Land. Then, they began to arrive in force after WWII and rob, murder, and steal it all back from the people who had always lived there. The Jews spent more time living outside of their Promised Land than they ever did inside it, which indicates that their “God” never really “gave” it to them and, given their history, never thought of them as his Chosen People.