The casualty figures you cite are as close to the best figures from any war. If you count only the actual dead and not just reported wounded. The figures go up in comparison to other modern conflicts. Also the figures change considerably if you count Hamas’s police force as combatants, as Israel does since they do participate in activities by their military wing.
In Chechnya the figures were close to 40,000 civilian deaths to 4,000 combatants, and 13,000 and 3,000 in the second Chechen war. The US war and occupation in Iraq 173,000 dead of which 39,000 were combatants.
Then when you consider that Israel launched nearly 5,000 bombs/missiles in that short war. The amount of civilian deaths is an even greater achievement in lessening the inevitable civilian toll in war.
The context of fighting an enemy that proudly uses human shields, child soldiers, civilian infrastructure, and is in a densely civilian populated area. The question becomes how much better than every other military does Israel have to be, to be recognized for its drive to prevent civilian casualties.
To answer an obvious question no I don’t think civilians should have to pay the cost for governments to go to war, but the obvious reality is they do. The only thing we can do is admonish them into mitigating the amount of civilian suffering they cause.
Israel should be forced to enter negotiations with the Palestinian authorities who will renounce terrorism. Just as the Arab powers should be forced to give citizenship to descendants of the Palestinian refugees, so a true number can be attributed for compensation by Israel and the Arab Powers responsible for the Exodus.
The settlements are illegal under international law, and their final status should be negotiated. Whether they become citizens of an eventual Palestinian state or are evicted from the land. The obviously needed land swaps are going to be a big part of the negotiations as having a contiguous land connection between the Gaza Strip and the West Bank is a necessity for governing, without compromising Israel’s right to govern who can enter their sovereign territory. The final status cannot be enforced by the outside but by good faith negotiations from all parties.