Are Israel euthanizing people with mental disabilities today? If the answer is no, then I have no interest in hypothetical.
Then let's go with a non-hypothetical.
Over 70% of Gaza's civilian infrastructure has been damaged/destroyed (most of it housing)
While I've been openly critical of Hamas's tactic of using civilian infrastructure to house/hide munitions and equipment, it's certainly not the case where 70% of it was being used for that. The destruction of civilian sites far exceeds what could be explained solely by Hamas’s military use of such infrastructure. Even the most "give Israel the benefit of the doubt" conservative sources (like Fox News pundits and the like) were giving speculative estimates of 10-15%.
Even if my own family member was the target of some sort of looming threat of violence, and I gave him the money to procure some sort of self defense implement, and he used it to indiscriminately start doing damage to every hospital, house, school, and restaurant in a 5 mile radius based on an assessment that was no more scientific than "
The bully might be hiding in one of those places, they've done it before, so I'm going to just preemptively target all of them with the buckshot approach" -- we'd be having a little chat and some ground rules would be set before they got any more of my help.
I'm not so naive as to think there can't be any collateral damage in war...war is ugly. I'm not even holding it to a rigid "even 1 is too many" or "1:1 ratio"
If taking out 3 really bad guys at the top of the organization food chain involves an operation that causes a handful of collateral causalities (as unpopular as it may be to say), Israel could make that case with me.
But, when you're talking about numbers like 60,000 dead and 70% of those are civilians (and the percentage is likely even higher, that "20,000 of them were combatants" is based on Israel's claim which they've never substantiated with anything other than their word, US intelligence suggests the number is more like 10,000, and even that's probably being generous to Israel given our relationship with them)
That's not anything resembling a "strategic operation" that "allows for some unfortunate casualties" anymore , that's just using the buckshot "kill 'em all and let God sort 'em out" approach, and hoping that some were Hamas members after the fact.