The UN wont because Israel has intentionally and beligerantly told them to F-off.
The UN has on countless occasions accused israel of war crimes and terrorism and demanded they be heard in the international courts and yet they have refused to do their duty and even show.
What do you want of them to beg until the UN changes side and supports Israel and then all of a sudden be ok with it. If you care about the UN then hold them accountable for the resolutions **already** decided. Once they man up and go to international court and found innocent maybe then the UN might be willing to hear their side, but until then frankly I dont think they should have a voice. They are a bit like a fugative at this point, when you refuse to go to court for your previous trials you cant expect to have a voice now that they feel their the victim.