Are you sure thsat the UN 1947 partition plan would have created a viable jewish state?

I am not a military expert, but I see that the official UN partition plan, i imagine at least partially inspired by the experiences of Ireland patition in 1921 and the more recent India-Pakistan one, would not have left a "viable" Jewish state

a) it gave Israel the coastal plains , which had been rendered by Jewish hard work more fertile, possibility to fish and harbours for commerce. But

b) these coastal areas would be geographically very thin and overlooked by the the plateau of Judea and Samaria. Even I can figure that an artillery piece of WW2 like the 155 mm gun could have easily reached from the hills even Tel aviv and Benyaminya and this could have been a sort of "blackmail" towards the Jewish urban population

c) the desertic area south of Berrsheba was to be left to Israel as far as Eilat, but the local road hub, Beersheba herself, would have reamained in Arab hands

d) the farmed area east to Tiberiade lake would have de facto been separated from the coastal area iof Haifa by a chokepoint easy to be blocked

e) in my view it was not right to have assigned the Sinai to the Kingdom of Egypt. After the inauguration of Suez Channel, the peninsula was de facto separated from the Afrocan lans mass and commerce and economical life were more and more connected to British Palestine rather than to Cairo and Alexandria