When there is a deliberate targeting of Palestinian civilians. Not just attacks done with little care for civilian casualties, but attacks where the civilian casualties are the entire point. We aren't there yet, despite what armchair philosophers will say on this site. Israel is being reckless, callous, and is certainly commiting war crimes, but unless the Palestinians are being intentionally targeted for the sheer goal of killing as many Palestinians as possible, it doesnt fall into the definition of a genocide.
You don't get these numbers without a complete disregard for civilian life, the rate they are killing average Gazans is astounding, they are only barely upholding a thin veil of plausible deniability.
See that's the difference though. A genocide isn't a complete disregard for civilian life. Genocide pretty specifically regards civilian life because the civilians themselves are the targets. Callous indifference isn't the same a genocide. You can say I'm being pedantic, but words matter. Calling it genocide when it doesn't fit the definition not only cheapens the word, it also cheapens your message.
At what point is a people who've been violently relocated into an open air prison (more densely populated thank Tokyo) responding to their attackers with violence in kind terrorism ?
I mean the bit where they killed their own hostages because they were so horny for killing civilians made it pretty obvious if you weren't already convinced