My optimistic way of looking at it is like this (admittedly US-centric but, well, a lot of things about Israel are US-centric): Israel should be a global pariah state but has historically been showered with aid by the US and given carte blanche to do whatever it wants. We’re not going to flip the switch over night but America’s abstention in an important votes marks a real turning point. Not helping, but not protecting either. We’re then on the journey to eventual outright condemnation. Netanyahu, genocidal fascist, has just barely managed to remain in political power (and out of prison) over the years due to deep divisions in Israel. I think single-handedly turning Israel’s most important ally against it might be enough to convince the Israeli public to finally permanently remove him from power and prosecute him for his myriad crimes.