Firstly I think the previous poster hit the nail on the head, in saying this only highlights the flaws in our international legal system. What is obvious is genocidal intent, if intent is taken to mean a dominant narrative of dehumanisation of the Arabs (cockroaches, vermin, etc) together with clear actions to, as you say, reduce the population of Gaza. If the aim is to prevent future genocides then dehumanisation is a key indicator.
The pp mentions holes in the codification of genocide as a crime, assessed through increasingly complex legal and scholarly definitions. It’s a philosophical debate almost, conceptualising ‘intent’: which is now an abstract concept and even when members of the knesset say things like:
“Gaza should be handled like Hiroshima”
“Whoever stays there should be eliminated”
“There is one and only solution, which is to completely destroy Gaza before invading it... Every child, every baby in Gaza is an enemy.”
(all actual quotes, you can look them up)
It is still considered ‘complex’ and ‘not proven’.
I think alongside this, it’s relevant to note Israel is a middle- high income country, for all intents and purposes a Western democracy. We have seen on this and other threads people complaining Israel is held to a higher standard than other countries, Sudan for example is a contemporary situation that is often quoted. And I guess they are right, in the sense that a Western democracy, yes, will probably be held to different standards. And there is what I think is the problem. A Western country is committing what is obviously genocide, so let’s get out the statute books and find loopholes in the legal fine print.