Way to simplify the civil war in 48......The then existing Arab league did not fail in any attempt to establish an independent Palestine living "next to Israel".  The Arab Leagues concerns were as follows:

[1]  The "international community" must, and indeed did not,  recognize the right of Arab self-determination within the borders of Palestine;

[2] There was no legal mechanisms or authority in place to ensure [1];

[3] The partition plan was considered to be arbitrary.