I can accept that as we move backwards from effect to cause we can aggregate some level of responsibility, but where does that end? Israel wouldn’t exist without the British, so are they responsible? To what extent is Hitler responsible? Or the Moorish invasion of Spain? Ultimately I guess we end up back in Egypt and it’s the Pharaoh’s fault?
Ultimately Hamas (and the Palestinian people, separately) are making choices and actions that are either appropriate or inappropriate to their situation. I don’t find the use of child soldiers (and historically, child suicide bombers) to be a reasonable response, and so I don’t hold Israel responsible.
And just to show that I am in fact operating in good faith here, I think the great match of return was an appropriate response, and hold Israel responsible for the resulting deaths.