You could say the same thing about the US, it’s been under european occupation for 250 years.
Most jews living in Israel were born there. Like it or not, that is their home now. They can’t go back to their country because they don’t have another one.
What can be changed is only what they do from now on. The right thing is to make peace and make ammends with the Palestinian people. The wrong thing to do is the genocide they are doing right now.