And yes, Israel has some extremely good technology. But they also have some pretty fierce enemies. See their incursion into Southern Lebanon a few years back for instance. They also don't have that large of a population. It probably is in their best interest they aren't seen as expansionist.... for the moment at least.
Given the history short (modern) history of Israel and the religious animosity of the neighbors etc. it would be certain to inflame more hostility internationally than Rawanda taking a piece of Burndi for instance. But I'm sure you are already aware of all this. I went back and read your previous posts. It seems you may be looking for an anti-Semite under every rock. Well... next rock. I'm just pointing out practical reality. I don't have an axe to grind with Israel existing.
What made me raise an eyebrow was the bit about how if things changed, it might be in Israel's interests to be expansionist. That's obviously true, one could say that about any country, of course, but... well, in the end that's probably on me being oversensitive, and it was uncalled for to go after it.