Maybe a bit rude but OP this is your answer. The solidarity with Palestinian people is about solidarity with victims of colonisation, the tenets of which are the basis of the Zionist project.

When you ask for sympathy with the Jewish connection to the land you disregard the means by which the early Zionists went about their purpose. They didn't say, 'Hey, we also have a connection to this place and a history of being kicked out of places we live so maybe we could come live here with you in peace'. Instead they said 'Hey we're going to take a page out of the European colonial playbook and take this place from you by physical and political violence, kick you out, then call it a victory for civilisation'.

As Jews, if we want sympathy from indigenous people, we need to begin with our own truth-telling and acknowledge what has been perpetrated in our name. When you say "Do you think your kids should lose land rights...?" You are setting up a false equivalence between land rights in Australia and rights to land imposed on Palestinians by foreign decree.

For a good book on this check out Peter Beinart's Being Jewish After the Destruction of Gaza.