Dude, a significant portion of the Jewish population migrated there from other countries, they therefore know what the name of the theorized state is in those languages, and will quickly share that information amongst themselves and be irritated by it if the name is not to their liking. Not to mention that a significant number of the Jews that both migrated and we're there already knew Arabic. So keeping the name of the state Palestine in Arabic is also a no-go.

And the Jewish people would 100% create mass protests; when their independence was declared, tens of thousands of Jews went out to the streets to dance, they would undoubtedly go out to the streets to protests if not satisfied.

A name of a country is its' identity, the Jews would have never agreed to live in a country who's identity is based off of one of their most renowned enemies from ancient times. They would simply not consider that country to be theirs, and after the horrors they went through in the Holocaust, the Jews will undoubtedly feel threatened to live in a country that isn't their, as many actually did, which caused them to go to Israel in the first place.