The white european jews that occupy Palestine have nothing to do with the jews of the old testament. Just another group of whites that invaded and displaced a native people.
That is not how Jews who moved to Israel think. They see themselves returning to their ancestral homeland. They didn't think they would ever be fully accepted in Europe.
This is a big problem with the conflict. Both sides have a lot of people who do not consider the other side legitimate.
A lot of pro-Israel people say Palestinians are not a real people. They are invented for the purpose of eliminating Israel. But they started seeing themselves as a people or nation around the 1920s.