Disturbing reports continue to emerge about mass graves in Gaza in which Palestinian victims were reportedly found stripped naked with their hands tied, prompting renewed concerns about possible war crimes amid ongoing Israeli airstrikes, the UN human rights office, OHCHR, said on Tuesday.
Well that's an interesting moral line in the sand to draw in this case.
https://visualizingpalestine.org/visual/six-wars-old/
I think wanting to avoid innocent civilian deaths is a moral line that is valid for both sides.
While I agree with that, it doesn't feel like your question to the other commenter carries quite the weight in this specific context as it might in others given that neither side has been clean about this, and it's not the Palestinian side that has intentionally blown up a playground within the past week.
I do generally think it's hard to equate the two fairly in this context, given the power differential between the two forces and their relative capabilities to be discerning if they so chose.
I apologize if I misunderstood you, but there is no both sides here. The united nations recognizes the right to armed struggle against occupation.
https://www.cjpme.org/fs_236/
It even mentions the Palestinian struggle explicitly.