You can't say Israël doesn't have the right-to-exist just because it's a settler-colonial project. By that logic, the USA doesn't have the right-to-exist either.
It sure is funny that the nation famously founded on the belief that governments only have legitimacy by the consent of the governed is loudly arguing that states have an inherent and evidently extracorporeal right to exist.
Gotta read between the lines with that shit. What they meant was government derives its legitimacy by the consent of the slaveholder oligarchy. Easy mistake to make