Likud is the party in charge and that has mostly been in charge for decades, so its charter is relevant until Likud is out of power.
Have you read no Zionists? Herzl wanted to dispossess everyone he could. So did Ben-Gurion. This isn't a secret. The dream of Greater Israel is old.
90% of a viable state is not a viable state.
We can hope you're right about Likud losing power. It's been awful for Israel and for Jews.
When we're talking about historic Palestine, we're talking about the sea to the river. Does anyone dispute that? You do have me wondering what the mythical Biblical borders were, so I may be googling soon.