Earlier quoted context omitted.
> How many people have been killed by Palestinians in Israel since, say, 2011 (the last ten years?) How many has Israel killed in Palestine in the same time frame? It will only be proportional if Israel agrees to let Hamas and the PLO be armed with as good weapons as it has. Or in other words if Israel commits suicide. It's unclear to me what you're actually arguing for.
The official position from Israel is that it must control all sorts of things because the huge threat that Hamas and others pose to its national security. Their official position is also that they only target Gaza in proportional retaliation, and even then only against combatants. What we see instead is that Hammas has less and less ability to harm Israel, but Israel is still systematically killing Palestinian civili…
Well yes, that's why the proportion is like it is. Once/if it gets the ability to harm Israel, many more Israelis will die. This has nothing much to do with "systematically killing Palestinians" or Hamas being merciful. It's just a possibly temporary balance of power. Interesting that Hamas fired the first shots in the last conflict, that's not really the behavior of a regime trying to save lives.