It’s very understandable to handwave it away and dismiss it,

I very much disagree. Handwaving it and dismissing it misses the entire point of why deliberately murdering civilians is bad.

but yeah, we should just briefly accept that violence against innocent people is wrong and immediately turn it back to Israel, who, by far, hurt and kill way more innocent people than Hamas ever could.

I don’t know about ‘ever could’ - if the IDF was entirely incompetent instead of just vile, I wouldn’t trust Hamas not to simply play this card in reverse. Their long history of antisemitism remains… suspect. On top of being theocratic loons.

But that’s why Israel supported Hamas to undermine Fatah. Much easier target for Israeli PR.