Since 1967, the UN has, though failed to enforce thanks to US vetoes, the partitioning of the land as stated in the 1947 partitions. Yes, from 47 to 67 the Arabs did not agree to the partition either, but why don't the Israelis realize that if this bid does not get approved they are going to end up being permanentely in charge of all the Arabs in the West Bank sooner rather than later.
If the UN accepts them in, suddenly Israel will finally have the legal cover to actually strike back against another state for cross border attacks because as of right now..everything...EVERYTHING they are doing in lands they unanimously annexed in 67 has no legit international credibility as it is occupied land.
Nothing good can come out of this for Israel, let alone America, by not allowing them in. Isnt this a miscalculation on their part?