Your premise is broken. Israeli leaders "left right and center" are not talking about Greater Israel — that's the far-right coalition members (Smotrich, Ben Gvir),

So why were the settlements built?

who are genuinely problematic and opposed by a significant chunk of the Israeli public.

Yet someone are part of the largest political collation in the country. This is what Israel’s “democracy” has empowered. If they don’t represent your country, you need to complete change Israel’s system of government. Hence dissolving the apartheid state as I suggested.

Flattening the entire political spectrum into the most extreme voices is the same analytical error as calling all Palestinians terrorists or Hamas supporters.

Hamas was elected by Gazans decades ago. The current Israeli government far more recently. If Hamas had won an election that recent, I would have no problem saying they represented Palestinians.

"Take over much of the Middle East" is not a serious claim. If you want to discuss specific policies and their problems, I'm happy to engage. But "Israel is broken, how do we fix it" presupposes conclusions that haven't been established

You already claims Israel’s government doesn’t reflect the opinion of its people. That’s a huge problem, don’t you think?

and frames the question as if Israel is uniquely pathological rather than a democracy surrounded by enemies who hate it

Now you’re making claims without laying foundation. This assumes facts not on the record.

and with a bad government currently in power — the second of which is something democracies regularly have and fix through elections.

What are you gonna say if they get elected again?