The issue now is how little can US/Israel give away on the negotiating table
Israel won't give away anything. Why would they?
The two main reasons for the war are essentially US desire to control oil
How so? I mean you must be aware this is the most beaten-to-death dead-horse tired worn-out trope in anti-american politics. So how does regime change and/or ending Iran's WMD program give the US any more control of oil??? What does that even mean? It's a global market. Other than pricing it in dollars, the US has no influence. It's not even in OPEC. I would admit I don't know Trump's reasons but I've got at least one foot in the 'deflecting from Epstein files camp and one foot in the 'wants a nobel peace prize so thought he'd run a 3-day special military operation (part 2)' camp. I seriously doubt Trump cares about the oil business, much less understands it.
While Russia, China and Iran (new axis) are not paragons of democracy (and let’s admit it, neither is the US)
Let's see. In China, there is no democracy, in Russia they assassinate opposition candidates or put them in prison and in Iran they murder tens of thousands of anyone who pushes for change. As corrupt as American government is, it's lightyears better than the three anti-democratic hellholes you just listed it alongside. The US is NOTHING LIKE those countries.
Israel’s main interest in the region is enhancing its own security. The recent rightward shift in Israeli politics has given rise to the tactic of annexing land that does not belong to Israel currently but that can potentially be justified as a historical claim. To this end, Israel has carried out a genocide in Gaza and significant harms in West Bank. They have also grabbed a fair chunk of Lebanon.
Utterly false. Israel's entire interest is it's own peace and security. It hasn't annexed land, it's occupied it (in both Gaza and now in southern Lebanon - one at best a 'terrorist administration', the other a literal failed state) to destroy the armies of Iranian-funded and directed terrorists who daily demand the genocide of the entirety of Israel (for political and religious reasons, not 'justice for stolen land'). It has also not remotely carried out a genocide. I know that's a popular leftwing sentiment, but it is not reality. Israel wants to
exist, Iran and its allies and armies of terrorists want it do be genocided. Let's be clear about that.
Israel may think that changing borders is desirable domestically but they must also be calculating how it will be seen by the world and what will it end up costing them on the global stage.
It's not seeking to change borders. It's stopping people outside its borders from attacking it. If Iran-backed Hamas and Hezbollah ended their crusade for genocide tomorrow, the IDF would go home in an instant, the Lebanese could go back to governing their own country (rather than Hezbollah) and the Palestinians could fully integrate into Israel.
And look at your point - of course Israel is calculating how it looks. But they don't have any choice? Do you think they really want to be accused of genocide or any other bullshit? Doesn't exactly look good for them does it? And yet... they still fight. They've no choice. If they want peace inside their own borders and the basic right to live then Iran has made sure they have no choice but to kill all their enemies.
Ultimately the end of this war remains unclear and that is because this war was essentially started without any clear goal
I think Israel is super-clear about the end of
its war. When the arab-muslim world in the ME abandon's its desire to turn Israel into part of a jew-free caliphate. When Iran stops baying for the death of the little satan. And when nukes no longer point at it. That's their endgoal - peace with its neighbours, because they no longer call for Israel's extermination.
The US? Yeah, Trump doesn't have a clue how he's getting out of this. Like Putin, he thought he could wave a magic wand and pull off a 3-day special military operation (or a 40 day one, doesn't really matter). Everything I'm hearing/reading says he has no clear idea of what he, the President and CinC, wants to actually accomplish, and no ability to listen to any actual advice from anyone around or under him. Very likely he either TACO's or - if only! - Congress remembers its constitutional rights and obligations and impeaches Trump. I'm not putting money on that one...
My main point here though is that Iran is fighting TWO wars with two VERY different adversaries. One laser-focused on its own survival, one focused on public adulation and a Norwegian gong - neither of which are materialising.