That's absolute nonsense. Zionist jews absolutely believe and teach that the occupied territories are theirs and the Palestinians should be forcibly removed.
Again, there's no good guy, stop trying to create one. They're both openly trying to commit genocide. Israel is just better armed.
No, there are some extremists that believe that the Palestinians should be removed - even by force, but:
a: those extremists are in the minority, and
b: there is a difference between removing (even forcibly) and exterminating every Jew in the world and wiping Israel off the map.
You're smart enough to get that difference.
All that said, yes, Israel seems not to be careful with civilians, but that brings me back to that question I asked earlier - "how should Israel react when Hamas attacks them with the stated purpose of wiping Israel off the map?" That is the one and only question that needs to be answered when somebody says "they shouldn't do that"
And getting back on topic - Russia, and to a lesser extent China, have their fingers all over this with the Iranians.