I admit to only really having surface-level understanding of any of the goings on across the atlantic due in part to apathy/goings on at home, so I do appreciate the elaboration.
You should also understand Israeli society a little better. Israel is extremely casualty averse. A single soldier that Hamas grabbed as a POW caused mass protests that lasted for years until one of the most hawkish prime ministers in Israeli history felt he had no choice but to agree to swap this single enlisted soldier for 1027 Hamas prisoners, all because of unrelenting public pressure that lasted for 6 years.
Gilad Shalit prisoner exchange - Wikipedia
Why did that happen? Because Israel is a conscript army, meaning that everyone is required to serve, thus every citizen either is, was, or knows something who is or was serving in a combat role. And seeing as Israel has freedom of the press and is democratic, it cannot simply suppress dissent...
What am I driving at? Can you imagine an army that like that marching on a conquest for oil?
Like with any realistic war, the casualties would inevitably start pouring in, especially if Israel went against some of its larger neighbours who have 5-10 times its own population. Unless the war is vital and the public views it as a matter of choosing between fighting (and accept some casualties) or have Israel's enemies succeed at committing genocide against it, the public will go ballistic.
That's how Israeli public and literature/historians/academia usually view Israel's wars - they are generally divided into "wars of choice" (which are considered in contempt) and "wars of no choice".
The Six Day War in which Israel took the Golan Heights is a good example of the latter, what in Israel we call a "war of no choice". That's because Israel stood on the brink of genocide by 3 different countries (or at least the Israeli public was convinced of it, those were days when Israelis were basically panicking en masse. Whether the Arab nations were capable of or even truly intended to carry out their threats is moot).
Ultimately that's what happened in 2006, after 121 soldiers died in Lebanon, even though the war was launched for a good reason with a good casus beli, eventually the public came to see it as a war of choice, and since there were comparatively many casualties and little gain this has caused a storm that forced the Chief of Staff to resign.
Accountability of military leadership exists in Israel.
How in the hell do you think they're planning to "expand their borders" with a society structured like that?
And I haven't even touched on the Israeli land forces poor projection capabilities.
Israel is not "expanding" any time soon or ever, unless you mean tiny chunks taken as buffers in defensive wars in which they were attacked first, in which case let them have their buffers, they earned them and deserve them.